Thanks to the help of one of my friend which is really a living god :-), I can say that all fucking Epay team members you believed to exchange with (Lucile, Marissa, Hannah, Sophia, Ronnie and Lucas R.) are very likely only one person behind all of them (same IP every time). It could explain the long delays of ticket answering when the site was popular, one guy to answer hundreds (? or more) messages is tough!
This guy used every time the same static IP address which is:
151.247.166.55
Iran is confirmed (Tehran)! Do we have guys from Iran in the community of people abused by Epay? Could you call his ISP to get his address (if a timestamp is requested use this one for example: Wednesday, 05-Apr-17 17:14:14 UTC) and then could you take your car or a train to meet him and ask him to pay every one?
Do not try to DDOS this IP, after reading this he will change of ISP very fast or request a new IP.
So Mr Farshid Mehrtash it may be time to pay your users now and to be a nice guy at the end...