Vodacom customer treated like ****

I have been a loyal customer with Vodacom since 1997. For all of these years I have had all my contracts with you, and as my kids grew up, all of them have also continued their journeys with Vodacom. Last year I received a sales call for an offer as one of Vodacoms loyal customers. On the call the sales agent made it clear that the deal he was offering was for 20gig data, R200 airtime monthly. I asked on a few occasions if this was for 20gig a month and the agent confirmed yes. He then said I could have two of the deals, then still said it was perfect for the wife as she would never have to buy data. He then went on to say that I am paying more on my current data then I would for the entire contract of R219. All went well the 1st month where I received my airtime and data, but from month 2 it was all downhill. I only received the R200 airtime. I phoned Vodacom to query and they said it was correct as I had taken the red 200. I asked them to listen to the call, and get back to me. Promise 1 to phone me back. No call received, and I had to phone them 3 times to get feedback and they said it was correct. I was then told into the store where they would have the recording ready for me. I got there, no call. Had to phone the call Centre again and arrange for them to get the call sent to the shop???? BTW why would a client need to arrange this????? Went to the shop AGAIN and listened to the call where my complaint was validated and promise 2 to escalate. The shop agent agreed that I was given the wrong info and logged a call again for the dispute. Once Again no feedback!!!! Last month Vodacom did not allocate my payment and I got a call from the billing department, I ONCE again voiced my concern and another query was logged but once again radio silence!!!!!!! I am so disgusted with this company I have been a loyal customer of for decades, yet to be made out as a **** and blame placed on me for agreeing to the contract, but Vodacoms sales department gave me incorrect information making me think the contract was something it wasn't. And then when you ask, they say it is the sales department, call Centre, walk in Centre and billing can't fix it???? Is the company not one? Do your clients not matter to you? Should I take all my and my families business to someone that is not going to treat me like a **** and look after the client??????