False MTN Bill

Hello,<br> <br> In 2015 I started receiving claims from MBD demanding payment for an MTN account that I don't know. I received calls, emails, smses almost everyday demanding money. I spoke to one of their consulted and explained that I do not have and never had any MTN account before. They asked me to send an affidavit, ID copy and 3signatures which I did.<br> After that I was still receiving calls and I had to resend the copies. Till now I still receive calls, smses, and email from MBD demanding an amount of 11467.72 for the same account. I feel violated because despite the effort to prove from my side that I have nothing to do with the account, I am still getting these demands from MBD. Can someone please help.