Ridiculous billing

Telkom is so pathetic...i took a contract and I was told i was gonna pay a certain amount only to find out the amount is going to change every month ..i wish I knew this before i actually took a contract with them,mtn is way better,their service is so poor that I ended up cancelling my contract....i can safely advice people not to consider them if they want to take up a contract...rather they consider either vodacom or mtn.