Did not receive my airtime on a contract

My airtime on my contact is renewed on the 8th of every month. However I did not receive my airtime this month only my data.<br> <br> I went to Mtn Cape Gate on the 10th to ask to upload my airtime, but the women told me it will take 48 hours, she gave me a reference number which I accepted and walked away.<br> <br> 48 hours later, I called the Mtn self service ***) and the women on the other end of the line said that they cannot help me today since the business offices is closed. <br> <br> Yesterday, the 14th, i phoned Mtn again to upload my airtime and the women told me it will take 7 days to upload it. i told her it is unacceptable and she sent in a request to do it in 24 hours. I was on the line with her when she put down the phone in my ear! Totally unacceptable!!! <br> <br> I think that this is all unacceptable and ridiculous. I am on a contract, how is it possible that I don't receive my airtime???? Especially since I received my data.<br> <br>