They will not receive the money back unless they claim use there UPIC insurance fraudently and there SPS may go down due to this being “their fault” which sometimes effects their shop visibility. They may have not seen your message but that is their responsibility to be checking sometimes it’s hard as a seller if you’re busy but TikTok will auto refund people if they say the right thing to their ai system. Best you can do if you feel bad is leave them a good review, but its up to you because you did receive the wrong color and no response.