No feedback till today for my refund

I went to Telkom like 2 weeks ago if I am not mistaken. I bought a sim card and data bundles for R149.00. Went home to connect the sim to my modem only to find out there is no network coverage. I went back to the store to inform them that I do not have network coverage in Verulam. They were surprised and said Ok you need the sim card that covers all networks. No apology whatsoever. Then a slip was requested from me. I did not receive any receipt when I purchased my data bundles. The guy who was serving me in the payments till did not give me a slip. When I told him that he then told me I must have lost it because there is no way he could've not given me the slip. Only to find out it was there with him when he checked and I did not get even an apology from him instead he said I must have forgotten to take the receipt. Whereas h was busy chatting to his colleagues while serving and I waited hoping he would give me a slip. I then requested a refund. It has been over a week no feedback and I was promised that I will receive a call from them.