Horrific Telkom service

On 3rd March 2018 I visited a Telkom store to port from MTN to Telkom mobile. I was told 24 hours maximum. It is now 96 hours and I am still on MTN. Everyday I chatted to a consultant and was promised it will be done "today". I contacted MTN and they rep**** "Please note your number was released and the port is awaiting for Telkom to activate it on their network". Also given me reference numbers. This was send to Telkom. Up to now, absolute nothing. Can I reverse this porting business and stay with MTN ?. I am terrified by the thought of the kind of service I will receive once on Telkom mobile.