About
Garry Shi is ShopBack's Cashback Expert, the in-house product specialist on how cashback, the wallet, ShopBack PayLater and linked-card programs work across Australia, Singapore and the United States.
The guides are verified inside the ShopBack iOS app, the Android app and the Chrome extension at the version current on the date of writing. They also draw on ShopBack's own product documentation and Garry's daily contact with the cashback teams across the three markets, rather than the idealised flow on the marketing pages.
Areas of focus
Cashback in practice. The full path from clicking through ShopBack to a tracked purchase, how long different merchants take to confirm, what happens when an order is partially refunded, and how to read the dashboard so a missing transaction does not become a missed transaction. Coverage includes online cashback through the website and app, in-store cashback through linked cards, and cashback through partner integrations.
Wallet and withdrawals. How the cashback wallet works once a transaction is confirmed, how withdrawal thresholds and methods differ by market (PayNow, bank transfer, gift cards), and how to time withdrawals against major upcoming purchases instead of leaving the balance idle.
ShopBack PayLater and member features. When PayLater makes sense, how to set up the schedule, where the interest-free terms beat a card charge and where they do not. Coverage of the member tiers, referral programs, ShopBack Pay and the linked-card programs as they roll out across the markets.
Stacking and timing. How ShopBack stacks with credit-card rewards, retailer loyalty programs, sign-up offers and promo codes. What overrides what, what voids what, and how to sequence the click-through and the discount code so neither gets dropped. Practical, not theoretical.
Editorial standards
Every product behaviour described in a Garry guide is verified inside the app or the browser extension before publication, not described from a marketing page. Where regional differences matter (PayNow versus bank transfer for withdrawals, country-specific PayLater terms, linked-card programs only available in one market), the differences are spelled out market by market rather than glossed.
Screenshots reflect the current app version at the time of writing. Every guide gets a date attached. The date_modified field at the top reflects when the flow was last re-walked end to end, which happens at minimum every quarter and ahead of every major app release that touches the behaviour described. When a product change invalidates older guidance, the affected guide is updated and the change is noted at the top.
Garry's guides do not cover the support cases that belong on support.shopback.com (missing cashback recovery, account-recovery flows, payout investigations). For those issues the article points the reader to support directly rather than walking through an internal process. The blog covers how to use the product well; support covers when something has gone wrong.
ShopBack receives a commission when readers complete a purchase through a cashback link. This commission does not vary by editorial coverage, and merchants cannot pay for inclusion, ranking or favourable language. Where a merchant pays a notably higher commission than its peers on a comparable product, the conflict is disclosed inline. Editorial picks are not sold.
Editorial team
Garry is the Guides Editor at ShopBack, working alongside:
- Jia, Editor-in-Chief — cross-vertical sale-cycle, cross-retailer pricing and cashback-layer coverage on the external shopping side
Jia and Garry cover complementary surfaces: Jia is the outside-in editor (what to buy, when to buy it, where the cashback layer sits inside a wider purchase decision); Garry is the inside-out editor (how the ShopBack product itself works once a shopper is using it).
Get in touch
Tips, corrections, or product behaviour the guides desk should look at: [email protected]
Corrections are logged in-article with the date and what changed.
Articles by Garry Shi
Which Xiaomi Air Purifier Should I Buy in Singapore in 2026?
Which Xiaomi air purifier to buy in Singapore in 2026, matched to room size using Xiaomi's own specs (4 Compact, 4 Lite, 4, 4 Pro and Elite) and NEA's sizing rule, whether an air purifier is worth it here, how to compare Dyson and Philips on the same numbers, and why you go through ShopBack Singapore before you check out.
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Xiaomi 17 or 17 Pro: Which Should I Buy in 2026, or a 17T or 15T Pro?
Xiaomi 17 or 17 Pro in Singapore in 2026: Xiaomi Singapore sells the 17, 17 Ultra, 17T and 17T Pro but not the 17 Pro or 17 Pro Max, so here is how the models you can buy compare on Xiaomi's own spec sheets, which Ultra suits photography, whether the 15T Pro and 17T Pro are good value, and how to lower the effective price through ShopBack Singapore.
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Are Udemy Courses Worth Buying in 2026, and Is Coursera Plus Worth It?
Whether Udemy courses are worth buying in Singapore in 2026, when Coursera Plus pays off instead, what each platform's own plans and refund rules say, and why you go through ShopBack Singapore before you pay.
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Is the Sennheiser Momentum 4 Worth Buying Over the Accentum in 2026?
Is the Sennheiser Momentum 4 Wireless worth buying in Singapore in 2026, and is the Accentum Wireless good value? Specs side by side, who each suits, where to buy, the official store's terms, and going through ShopBack before you check out.
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Are Sasa Products Authentic? Buying The Ordinary in Singapore 2026
What Sa Sa says about authenticity, returns, refunds and customer service for Singapore orders on sasa.com in 2026, where Singapore shoppers can buy The Ordinary, and how to pay less on the same beauty order.
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Is REVOLVE Worth Buying From in Singapore in 2026?
Whether REVOLVE is worth buying from in Singapore in 2026: working out the landed price with GST, reading reviews, checking returns and customer service before you order, and going through ShopBack Singapore before you check out on the website.
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Which Razer Mouse Is Worth Buying in Singapore? Viper V3 Pro, 2026
Which Razer mouse is worth buying in Singapore in 2026, whether the Viper V3 Pro is worth its price, which Razer keyboard is the best buy, where to buy a mechanical keyboard, and how going through ShopBack before you check out lowers the price you actually pay.
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Is the Plaud Note AI Recorder Worth Buying in Singapore in 2026?
Is the Plaud Note AI recorder worth buying in Singapore in 2026: what it does according to Plaud, who gets real value from it, how the free and paid transcription plans work, where to buy it, and why going through ShopBack Singapore before you check out lowers what you pay.
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How Do I Pay Less When Shopping H&M Online in Singapore in 2026?
How to pay less on H&M Singapore online orders in 2026: H&M's own member offers and sales, where to find codes, delivery and returns habits, card rewards, and going through ShopBack Singapore before you check out.
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How Long Does ASOS Take to Deliver to Singapore in 2026?
ASOS standard delivery to Singapore has been listed at about 6 working days and Express at about 2, plus how returns, promo codes, the student discount and ShopBack work on an ASOS order.
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