Breach of Contract

I took 2 cell phone contract phones with MTN last year in July 2016 at Westgate Mall ,I was told that the first payment will be a bit high because I have to pay pro-rata for that month which I did when I made my first payment in August 2016 and I paid more than R529 . My phone ********** 282 was R299 per month and my wife's phone ********** 621 was R229 per month ,this is what I was told i will pay every month for 24 months until the end of the contract and nothing more was said to me about additional charges . To my surprise , I found myself being suspended this year in July and when I phoned ,i was told of some recurring data which I did not apply for and I was told I have been paying in arrears but when I asked how so, I was given different reasons by MTN consultants ,some told me I was paying in arrears ,some told me of some recurring data that I took with the contract but it was on a discount for 12 months ,then would start charging me after 12 months . I was also told of some data which expired after 12 months of me taking the contract and everything I received after 12 months was billed for me to pay which was not even said when I took the contract. Some told me that every invoice was showing that I was paying in arrears but when I asked them to send me those invoices ,they sent me only invoices that show my number only and there was nothing like arrears payment until the August 2017 invoice which came with R1113.32 billing . I tried several times to query this with the collections department but no feedback was received ,they just ignored me. I have proof of sent emails and I have proof of statements that were correctly billed and those that were incorrectly billed . I asked them to send sms's to me but they kept on sending them to my wife .Since I took the contract ,MTN has been sending sms's to my wife even after I requested them to send them to me. This is for the second time I have bad experience with MTN and it's for the last time I am taking any contracts with MTN, I am just waiting for this issue to be resolved so I can leave MTN for good . MTN are ******* and lairs . I am fed up . Please help me Hello peter , I know you helped me before and I am confident that you will help me again .