@ProxyFish Essentially your system (I assume) makes it so that you subscribe when you purchase the proxies, which is followed up invoices being sent when the proxies are expiring. Once you attempt to pay the invoice it subscribes again. so it appears that this is some sort of scam in which you try to collect double the payment from other people.
It's highly unlikely that we'll receive a response from you as you haven't logged on in over a year, but if we don't, then you're free to dispute this when you're back. I've DNT'd you in the meantime in the case you do manage to see this / respond.