Very Bad Service- MTN Gateway

Very poor service. I have to been the Mtn store in Gateway to pay my contract bill and upgrade my contract. After I had made the payment I was told very rudely by the assistant Mincentle Dladla to wait an hour because my payment needs to merge. I didn't understand what that meant. Whilst I was waiting the assistant continued to ignore me and went off for lunch. After waiting close to 2hours and being ignored I was bluntly told by the assistant that nothing can be done because the billing department is closed. The manager Melani Moodley did not even have the decency to apologize for wasting my valuable time sitting and doing nothing in their store. I really felt as though I was not a valued customer as MTN claims.