2 Different phones in 7 days

I upgraded to a Sony Z5 on 01/12/2015, the evening when I got home I realised that my airtime had not carried over to the new contract which I was assured it would by Jeff. I had to purchase a Nano Sim for the new devise which is not necessary now, as I have returned the second phone which was replaced. I returned the first phone Wed 02/12/2015 got a new handset which also since have been giving problems. <br> <br> I am now phoneless because this experience with MTN Cape Gate has left a bad taste in my mouth. I have had this contract for approximately a decade & never before had problems. They have not been able to sort out the airtime issue, it has been a week. <br> <br> I had to purchase a Sim converter which MTN have said I must submit the receipt & I might be reimbursed. I am a single female, which works in Stellenbosch lives in Kuilsriver, drives alone & now I do not have a cellphone for emergencies or communication. This is the situation I find myself now after being excited to do my upgrade.