Wrong phone delivered and still charged

In May of 2014 i got a call from elite mobile sales offering me a Samsung galaxy S5 for only R149 per month. this sounded a bit unreal and i confirmed with the sales consultant that it is a Samsung Galaxy S5 and she said yes. of-course i accepted and she said the phone will be sent to me with a sim card in 14 business days. on the 26th of may Ram couriers delivered the phone and to my disappointment inside the box was a Samsung star. i immediately called the call center and said all needs to be cancelled and they arranged for ram to come and collect the cellphone and sim card (both still sealed). After i had to call them about three times they at last send ram to collect the headset and sim on the 8th of August 2014 (3 Months later). then to my surprise they started to debit my account every month to date for R149. i called them and they refused to give me my voice recordings which they said will be made available on my request and they said the phone needs to be scanned back first in order for the refund to take place. they debited my account again this month. i called them again and said i want this sorted, im still waiting for feedback a month later. BAD BAD BAD!!!