Refund overdue 2 weeks

On 5 Feb 2015 i made a payment incorrectly to my Cell C account and i was supposed to put the money into my personal bank account. On the evening of 5 Feb i called Cell C call center where i was advised to call the next day as payment was not reflecting yet. On 6 Feb i called again they advised me to send the Proof of Payment which i did to the e-mail address they provided.Monday morning 9 Feb i called they said i need to send the proof of payment again as they did not get it, i mailed it again, then i called 10 Feb they got the Proof of payment and advised me that they will escalate the Refund to the relevant department.I called 11 Feb, 12 Feb, 13 Feb, and it was still not done instead they done a payment allocation to my cell c account and NOT a REFUND! then i spoke to a team leader Thabo Mokwena he advised me that they will send the request to their Billing dept for the Refund. On 17 Feb i called and was told that Thabo will only be available after 5pm and that NO ONE else can assist me..This is really very poor service i mean a Refund cannot take 2weeks to process when you have all you need.!!!