Stay away from FNB smart device

I bought a smart device on FNB smart device. I received the phone, 2 weeks later, the phone did not want to charge. Phone was collect in September and arrived at repairer on 3 September. Phoned FNB 15 September and said I will receive my phone this week. Its now Friday afternoon 18 Sept and still no phone. I received an sms yesterday, 17 September that my account will be debited with R**** for my smart device. I WANT TO CANCEL MY CONTRACT!!!!!!!!!!!!!!!