
KTC cardmembers planning a Siam-area meal can currently turn 800 KTC FOREVER points into THB 100 cash back on food and drink at participating Siam Square One stores. The appeal is straightforward: the promotion is specific enough to act on, but broad enough that diners or travellers can fit it into an ordinary Bangkok or Thailand itinerary without building the whole day around a coupon.
The offer runs during 15 April 2026 to 14 August 2026 and is meant for KTC cardmembers using the qualifying card or KTC FOREVER points as described by KTC. Availability and final pricing can change by branch, date and bill type, so treat the promotion page as the booking checkpoint before you pay.
How It Works
Use the eligible KTC credit card at a participating Siam Square One food or beverage outlet, then register the redemption on the spending date as KTC requires. The benefit is points-for-cash-back rather than an instant menu discount, so keep the sales slip until the credit is processed.
The promotion applies only to participating outlets inside Siam Square One and follows KTC cardmember status, points balance, sales-slip and registration rules. It is not a blanket mall discount and may not combine with restaurant-specific campaigns.
Who Should Use It
This is most useful for readers already eating around Siam, especially when pairing a casual lunch, dessert stop or pre-cinema meal with a points balance that would otherwise sit unused.
Weekday lunch and early dinner are the easiest windows because Siam Square One gets heavier foot traffic after classes, office hours and weekend shopping peaks.
Before You Pay
- Check that the restaurant is participating before ordering.
- Redeem on the spending date, not after the trip home.
- Use the qualifying KTC card and keep the receipt until cash back posts.
- Ask the outlet about service charge, VAT and menu exclusions before relying on the saving.
For the current redemption wording, participating outlets and exclusions, check KTC’s current promotion page before ordering or booking.
FAQ
Can tourists use this promotion?
Only eligible KTC cardmembers with the required points can use it, so it mainly suits Thailand-based readers or visitors with a Thai-issued KTC card.
Is the THB 100 taken off the bill immediately?
KTC describes this as cash back after points redemption, so readers should not assume the restaurant will reduce the bill at the table.
Is every Siam Square One restaurant included?
No. The offer is for participating stores only, and KTC is the page to check before dining.
For more planning context, browse The Finest Thai’s Deals coverage and related Bangkok or Thailand guides.





