absolutely ridiculous over billing

it is scary how bad telkom billing is and how bad they over bill.<br> I have had a contract with Telkom for 2 years for my Tablet and data costing R349 per month. I have honored this contract and upon it's 2 years app**** for cancellation 22/03/2016. I suddenly receive a bill for R570.48 upon cancellation. 27/03/2016 - 31/03/2016 for R65.48 and 01/04/2016 - 30/04/2016 for R505. taking into account my tablet is paid off. this bill is more than a standard 10 gig contract contract with Telkom. and way more than what i was paying with my contract and tablet. and this is also after already being billed R99 for the exact same contract. it is appalling to see this happen and the abuse Telkom is dishing out financially.<br> this one bill is basically what I pay for My LTE uncapped at home.<br> I have 2 additional contracts with Telkom which now scare me. What am I going to be charged next?<br> this is unacceptable!!!<br> <br> I would like answers!!!