Thank you IanL! Appreciate your help.
As I have just read both threads I have question to Administrator: how it is possible that all other companies/publishers/e-shops are dealing with this problem (spam from countries like China, Poland, Russia etc.) somehow (by not cutting hundreds of users off) and you do not? You are the only website I can not access to. Are you sure you are good at what you are doing if you can not suggest/find any other solution and you even not try to? Is this official BTC policy​/regulation?