Bad service MTN

Here is a little tale of how a sweet relationship quickly went sour,so on June this year was my 20th month with MTN and that is the time when the upgrades team start calling people for early upgrades,of course i got the same calls and i didn't accept any of the offers as i knew i couldn't afford it.23 August 2021 as youl see on attached billing statement, i received a call and this lady who offered me a made for home package which apparently is designed for people that have fibre at home and have certain kind of routers,which she failed to disclosed to me,i expected to get a sim card delivered to me but the lady loaded the the data package on to my mobile sim card which then barred my incoming or outgoing calls as this deal is meant for routers.12 September 2021 as highlighted on attached billing statement i called 135 and spoke to someone to let them know that my calls have been barred thats when i was made aware of the mess up that the first lady who gave me the made for home plan did,i asked how we can fix the error as i need my phone to fully function,the lady wasnt really helpful she actually said that there is nothing that they can do,i would have to take out another contract and cancel this one as its their agents fault.On the same day i received a call from another lady who reassured me that she will sort my problem out,by simply changing my plan and unbarring my calls ,she then proceeded to offer me another data package where i get 80gigs for R299,it was a deal i couldn't refuse,i clearly asked her how this whole mess up my contract and she said it wont they are able to do that from their systems,asked her about additional costs and she put me at ease by saying everything will carry on as normal,just that now i wont be paying for a device il be paying for just data.The R299 did go off my account and the data reflected as well,everything was sweet i was sure and happy that indeed the problem was sorted.Fast forward 30 September2021 R1 567.84 gets debited off my account as stated on attached billing statement, so obviously i try calling 135 again and this time i hold for over 20mins without speaking to anyone, as you will see on attached screenshot.2 October 2021 i went into store to try and find out why i was debited so much money when i didnt get an open line,all i wanted was a data package as part of my upgrade,The wonderful lady Ayanda at the Balfour park branch was just incredible with explaining everything clearly to me and making me aware that MTN made a big mess up with my contract aa you will see on attached billing statement.I went to the bank to reverse the amount as i will not be paying for migrations that i know nothing of and all the calls were recorded and i know my rights as a consumer as per the consumer protection law.The lady advised that i should pay an amount of R420 which is the mormal package amount of R299 aswell as the pro-rata amounts on the billing statememt.I paid and attacthed the slip to the billing statement attached.the same lady then proceeded to log a billing query and i kept getting smses saying my case is opened and the ref number is,however i never received a call from anyone regarding the query,i then sent an email on 2 October as attached and i got a response however i was still told about accumulating some migration costs,at this point i figured that the lady that called me to fix the error migrated my plan and did not disclose to me what she was doing or that i will be charged for something they messed up in the first place,all i wanted was a data plan as i was not ready to take a device .As attached email i responded to the email on 7 October but no one has responded to my email to date. 6 October as attached sms i received stated that i wont be able to make calls if i dont pay R1 159.34 and i wasnt able to do so on Friday 8 October,MTN blocked my phone which i paid for,MTN blocked 48 gigs of data i still had left.so basically this phone has become a toy now,please help me,i have never missed a debit since my first inception with MTN 2 years ago,i am being treated like i have no rights as a consumer