Unhappy Telkom customers

Having a contract with Telkom for a 10gb has been nothing but a nightmare. 1st I ask them for the 4th time to deduct my debit order on the 15th but every time it’s on the first.. now my account is blocked even though I have paid.. I was told they would unblock it.. it’s been 4 days now. My bill never comes at the agreed R299 as we agreed it’s different sometimes as high as R800 .. I’ve asked them to limit it multiple times to the 10gb as intially suggested however this is never the case.