cancellation of the contract

Good day,<br> <br> In July I fill application form with Telkom to see how much I qualify for and I wanted Samsung S5 and it was out of stock they said that I must check after week then I went I was still out of stock. The I went to MTN for application and it was approve then I got the phone form MTN I sign the contract with them. After 2 weeks Gentleman from Telkom called me to confirm if I toke the phone I said no it was out of stock and I toke from MTN. On my payday 21 August 2015 I got sms from Telkom says R743.71 was deducted to my account then I went to Telkom to confirm that I didnt take the device and I never sign the contact with them. They say they will sort it out I wanted my refund urgently they says that it will take some days and they advice me to go to my Bank to cancel a debit order.<br> <br> On 11 September 2015 I got sms from Telkom for total due amount of R1142.71 Account NO :***. What is it for I never toke device from Telkom? I went to Richards Bay Branch Laetitia Bezuidenhout sent attached email to: Thulani Ngwenya and Patricia Mokwena.<br> <br> How come the amount was deducted to my account while I didn't received a device?<br> When did I sign for collection?