I am so sorry this happened to you. I can understand your frustration because I have been there. Your first mistake was accepting the cancellation. As long as you know that you did the job right without copying it elsewhere, you should reject the cancellation. You have the right to be paid after you have delivered the project according to the job description. In that case you ought to have informed CS while the buyer was threatening you and not after you have accepted the cancellation request. The only thing you can do right now is to wait for CS response to your email. Its very unfortunate that some buyers know how everything works here and try to override sellers who don’t know their rights. Again, I am so sorry this happened to you 🙏 PS: Of recent, CS has been quite slow with tickets in general, you have to be patient, up to 24 hours.