Non Subscriber - MTN SP Debits off my account

I have been billed for the last three months varying amounts ranging from approximately R600 at the end of May, if memory serves me about R1400 at the end of June and R2404.37 exactly at the end of July.<br> <br> The debits have been sent to my phone with the account number A*** and I've had to reverse each debit at my bank.<br> <br> This is all very strange as I hold no accounts with MTN!!!<br> <br> I have tried contacting the MTN call centre but have been unable to speak to a consultant without success as the line goes dead after selecting that option.<br> <br> Please can someone contact over this issue ASAP, thank you.<br>