Bad service

I bought Telkom data at the beginning of this month via Cellphone banking the transaction went through but I never received it. I waited and waited nothing. Then I decided to call FNB and ask what was happening because the money went out but haven't received anything. I was then told there's been technical error with the service provider buying data from FNB but they are busy working on that and my query will be escalated. So Monday last week I received the following message : FNB: Complaint *** has been resolved, the transaction failed, and a refund will be processed in 3-5 business days. But today is the 6th day and my money is not refundend. FNB service now is beginning to be poor. I want my refund ASAP!