Mo'nice Bundles

Extremely annoyed with Telkom. Every time I try to buy a mo'nice data bundle, I'm informed I have insufficient funds but when I check my balance I have more than enough to make the purchase twice!!! This is ridiculous. It's happened to me three times now and everytime I end up having to buy a bundle that I don't want & isn't worth it's value because I'm in a crunch. Had to sit on the phone waiting for a call centre agent for 20 minutes yesterday only for the call to magically cut on it's own. The first time this happened I left the airtime in my account, switched off mobile data usuage on my apps save for Whatsapp only to find out Whatsapp had been chowing the airtime, my Whatsapp bundle is for what then???? So dissapointed. Telkom needs to get it's act together and stop ******** customers.