So my laptop finally died and had to resort in getting a new one and re-obtaining everything I've had from the old laptop. I also wanted to re-obtain Gates of Troy which I purchased in this site, but it looks like I have to buy the whole thing again.

I can't even remember whether I signed in or not (if I did, my username/e-mail would be the same as this) as I've bought the game back in 2014, but it looks like I might've been a guest during the purchase? Not really sure.
Anyway, all I have are the details of the purchase sent to my e-mail at the time, from info@slitherine, which contained the order ID, the license key/serial number and the payment details sent from another e-mail. Can this be provided or something, in order to download the game again? Anyone know what should I do?
Should I resort to buying the game again, even though I still have evidence of that purchase?
