Multiple unresolved issues for a year

We installed a Telkom ADSL line for our business last year in Feb. Unfortunately from the beginning there have been huge challenges. Firstly they sold us a speed which could not be achieved - website allowed 10meg line to be sold, Telkom has been happy to bill us for the year despite the line only being capable of 4meg at most (confirmed by Telkom tech), as it was so far from the exchange. We queried & it in Sep was promised it would be investigated & findings reported in four weeks - dispute number: ***1. No response as yet.<br> <br> Another massive issue has been the unreliability of service, with the lines either being down or the internet slow on a weekly basis - I've literally spent about an hour a week for the year trying to resolve the constant issues. (+-30 calls). Currently the issue of the week is extremely slow internet upload speed causing sites to be unresponsive. ISP & tests confirm that the issue lies with Telkom. <br> <br> What Telkom can do to resolve my problem: 1.) have a senior manager call me to discuss the challenges. 2.) provide us with Telkom Uncapped LTE internet with the costs of overbilling us for a year so that we may actually do business & stop incurring loss.