Hi Lim Eng Ee, sorry for the inconvenience. We have checked with Coconut House and it appears it was a miscommunication with their new staff, which they have already rectified. They wish to apologize for the error. Thanks for your understanding and support of KindMeal.my!
The Terms & Conditions didn't stated that it can't be used on Sunday. If I were you, I'll talk to the boss or manager. A lot of times those restaurant staffs are part-timers and they're not aware of any promotion going on.