I just bought Aseprite very recently and I have gotten no download key nor an email confirming my purchase, and I have contacted the support but it gave me a response that has not help me. The place I purchased Aseprite, was on the website.
I would recommend to continue messaging support and reading the New Website Account post.
We’ve finally fixed @Umair issue, the purchase was made with an misspelled email address, these are quite hard to fix because first of all we have to locate the real purchase with a “similar email” and a “similar transaction amount” (if no transaction ID is provided). It should be already fixed now 