Victim of MTN *****

I am a victim of *****, i started to get SMS's a month ago from a company MTN MBD that i how them R32000 and i must pay my account. I DON'T HAVE ANY MTN account, never had and never will. Apparently i opened the account this year in Feb 2018 and how it can reach that amount of R32000 is beyond me plus how did MBD get my correct number to sms me these amounts as i never opens a mtn acount and I'm on Cell C But i have sent them the the affidavit and hope they will sort this out as i dont want to get black listed.