Unauthorised debit order

On 03/03 my normal medical aid premium went off my account followed by another debit order of R 1 273. I called the call center this morning to find out why and was told that this was due to the fact that I did not respond to three emails and an sms they sent me for proof of income. Firstly, I did not receive any of the mails and my cell number on your system is INCORRECT which explains why I also did not receive an sms. In the beginning of call Ref 030315Q75KFP I am being asked to confirm my cell number (for security reasons) to which I clearly reply with the correct number... but no one notices that the number on the system is incorrect. After being told that I will not be refunded my money I asked to speak to a supervisor.... This was 08h30 am and I am STILL waiting for the supervisor (who was 'busy on another line') to phone me. I want proof that I received any of these emails and I want my money refunded. I have no problem confirming my income but I do have a problem with unauthorised deductions from my account. This is absolutely ridiculous. Take responsibility for not having the correct cell number and refund my money ASAP.