30 day notice on a month to month payment??

I called telkom as i want to move my line to afrihost, so i wanted to cancel my month month (not contract) data.<br> I then got told i need to wait for 30 days before the cancellation will take place? So i go online, and see many situations with many people having the same problems, but then you read what people say, and see that alot of people managed to get it cancelled in less than 2 days..? So is it 30 days, or immediate?? I dont see why i must pay for another whole month that i do not want, And going through telkom terms and conditions, i dont see why i should have to