OK. I've got responses from other people and they fixed the link.
Considering I've tried communicating by email, with PM messages here on GFY (the user was online today, and every time I've checked in previous days) maybe this will get his attention:
https://gfy.com/sell-and-buy-forum/1...s-3-sites.html
I've bought three links and I am keeping all communication in my mailbox. Anyway, it seems pages are missing. The seller not answering my messages.