Earlier, I had applied for an education account as a student, then I received the promotion code, but the system said that my code is not valid. I then sent an email requesting a new, valid promotion code. No one replied to me even after a day 
Hello @201169q1k2t, welcome to Thunkable! 
Unfortunately, this coupon has expired.
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How come the code will expire in such a short period of time? Also, how can I get a new code that is not expired?
Hi @201169q1k2t ,
We informed the billing team and will contact you as soon as possible. For financial issues, only the billing team can help you.
If you have any technical Thunkable related questions, feel free to create a new community post.
Thanks 
My gmail is 201169@std.stpaulscollege.edu.hk