MTN useless

On the 1st of June 2021, I got a call from MTN (rewards department) it has been close to two years I've had a data only Sim card for my cellphone with MTN.

I got a call offerring me an upgrade on my current package which was a great deal since I will be paying the same amount on the upgrade as my currently paying, the package was an upgrade on Data as she explained, my current plan is 40gig (20 day /20 night) I am now upgrading to 50gig for the same price, it's a good offer because I have nothing to lose, it's a great offer, I even asked again is the Data cap the only thing changing on my contract, the consultant answers YES - okay I give the go ahead, shortly I notice my data is on but I am not getting any internet access no mails no whatsapp texts nothing, I reboot the phone, data off, flight mood until I decided to call Mtn and find out, 1st call I was told there is a network problem they will reset my network I need to switch off my phone and switch it on after 5min, okay I do so.

Still nothing, the next day I call in - I am now being told that I need to place my Sim card in a router because I am on Mtn home package - A shock because I've been using this Sim on my cellphone ever since I got the Sim card, now it's all making sense that my package was changed on the 1st without disclosing this information to me over the phone I was under the impression I will be keeping the same contract package just upgrading, okay done - I need to get this fixed because I have no internet access on my phone for days now unable to do my work or communicate with clients or family - I was advised to call in on my Monday which I did I was given a cancelation reference (RCO-122622) I've calling in to try and get this reverted/canceled so I can go back to my normal life, I am being told different stories, I can't be transfered to a senior consultant to assist I am being told to what for a week for this to be sorted, I regret taking up this contract with Mtn and as a loyal customer I haven't been given the service I deserve, the consultants are all telling me they can't assist I need to wait for a week for my reference to be attended - IMAGINE

FROM THE 1ST I HAVEN'T BEEN ABLE TO USE A SERVICE THAT I PAY FOR EVERY MONTH.