Horrible customer service

On the 29th/01/2019 I went to Game stores in King William's Town to buy a vodacom router on a contract. I was advised to submit my documents and my latest payslip which I did. I was told that the process would take 15 minutes and that i would be receiving a phone call advising me of the outcome. No call came through on Tuesday. On Wednesday afternoon, 30/01/2019 I went back to the store to find out what the outcome was and Talitha (the sales assistant who had been helping me) told me to wait still. No call came through on that Wednesday. On the 31/01/2019, seeing that there was still no phone call I then went for the 3rd time in the afternoon to the store to find out. Thalita was not on on duty and the lady who assisted me at the time said that they needed a January payslip instead of the December one which I had submitted. I find this to be very frustrating because had Thalita told me for the first time I would not have wasted my time and petrol driving back and forth to the store. I then asked to speak to the floor manager and the manager at Game Store KWT refused to speak or see me. He told the receptionist that i should lay my complaint to the Head Office. I phoned the head office customer services this morning to lay my complaint and was told to phone the store directly. I phoned the store and was told that the floor manager, Thando, would come back to shortly. He has not done that yet. I was an hour ago.