Incorrect provisioning and bad customer care

For the many years ive had MTN contract this has been by far the worst decision to upgrade my contract. My ordeal started when I wanted to cancel my contract late last year, I contacted MTN and was referred to their retentions department who told me they will not upgrade my contract but will keep me on the same data package of 4gig data as i was on and that I would be paying R89 and whenever I needed to upgrade id be more that welcome to. That sounded like a fair deal and I stayed. Come November 2017 Black Friday came and ooh did they have awesome Sim only deals and as I know my husband is die hard internet fan, MTN Black Friday deals were a perfect gift for him. So I headed to my nearest store and requested an upgrade, to my horror my number had previously been upgraded to a 2year contract with my consent. As livid as I was I still proceeded to taking up a contract but now problems started arising when I could not use the night data as the promotional and daytime data were beeing depleted concurrently and i had to wait to deplete both before I could tap into the night data, made a number of calls which proved fruitless. Then on the day MTN credits my data I noticed that part of my data was missing made a call to customer care and most of the agents I spoke to were not interested in helping all they cared about was arguing with me, requsted for a team leader he was the worst we fought for over an hour before he realized what i was on about and then proceeded to escalate the matter to billings department who came back stating billing was correct. Called back in argued again with another service agent then requested to speak to a team leader, spoke to a gentleman by the name of Mohamad who listened, investigated and tried to address and escalate my quiry as he saw that according to the contract i was on a my choice 5gig which included 20g anytime (10g day + 10g promotional)data and 10g night but only (5g day + 10g promo + 10g night) = 25gigs total was credited who escalated again back to the billing department. Resolution came back stating correct billing was done and the provisioning was correct, was advised that billing department was unable to load from their end and referred back to the store. Went to the same store I took the contract from in Wonderpark, Vanessa told they are only a franchise and they can not load it from their end i need to visit MTN direct store but would still escalate the matter. Went to to the nearest MTN direc store in wonderboom spoke to Fredy who said they should be able to and referred me back without any assistance. At this point i am stuck in between a rock and very hard place as all endeavors to get help seems fruitless the only thing left to do is get the ombudsman to intervene and get out of the contract never to do business again with MTN. I once held this company highly but it has lost its value and service towards its clients.