As a one-time courtesy, we've issued a refund due to the author's lack of response. Keep in mind we only have a 6-month window to bypass the author's approval to issue refunds. Beyond that, it's a total loss and isn't something we can do often.
Without this sounding like an advertisement, if you want to avoid the headache of this going forward consider getting Codefling+ and get a 2-year warranty on all files purchased. You will either have a working file, or a full refund. https://codefling.com/subscriptions/