THANN is offering 20% off spa treatments for eligible KTC Mastercard and KTC PROUD Mastercard customers through 31 December 2026. The offer is available from 10am to 2pm, Monday to Thursday, at THANN Gaysorn, Emporium, Chatrium Grand Bangkok and One Bangkok.
This is a narrow time-window benefit rather than an all-day spa sale. It works best for someone who can book a weekday late morning or early afternoon and who wants a standard treatment, because spa packages are excluded.
How To Use It
Choose a participating branch and make an advance reservation. Mention the KTC Mastercard privilege and name the treatment you want. At the spa, present and pay with an eligible KTC Mastercard credit card or KTC PROUD Mastercard cash card. No separate campaign registration is required.
Check The Clock
The appointment must fall within the published Monday to Thursday window from 10am to 2pm. Ask whether that refers to treatment start time or payment time, especially for a long session that ends after 2pm. Public holidays or special operating days may affect availability, so reconfirm directly.
Know The Exclusion
The discount applies to spa treatments and excludes spa packages. A bundled ritual, gift set or already discounted menu may therefore sit outside the offer even if it appears on the same booking page. Request the treatment name, regular price, discount and final amount before confirming.
Choose The Branch
Gaysorn and Emporium suit central shopping routes, One Bangkok works for Wireless Road and Rama IV plans, and Chatrium Grand Bangkok is convenient for the Siam and Ratchathewi area. Choose by travel time as well as menu. A cross-city ride can erase the calm that the treatment is meant to create.
After The Treatment
Inspect the receipt before leaving and make sure the 20% reduction has been applied to the eligible treatment line. Service charge, tax, add-ons or retail products may be handled separately. Keep the booking confirmation and payment record until any discrepancy has been resolved.
Practical Information
- Dates: 1 May to 31 December 2026.
- Saving: 20% off spa treatments.
- Hours: Monday to Thursday, 10am to 2pm.
- Branches: Gaysorn, Emporium, Chatrium Grand Bangkok and One Bangkok.
- Booking: Advance reservation is required.
Questions
Are spa packages included?
No. The published benefit excludes spa packages.
Do I need to register?
No separate campaign registration is listed, but an advance spa reservation is required.
Can I pay with any card?
The offer is for eligible KTC Mastercard and KTC PROUD Mastercard products.
Should I mention the offer when booking?
Yes. Confirm the treatment and eligibility before the appointment.