Migration through Vodacom (Elite Mobile) wrong information

A lady from Elite Mobile contacted me in April 2021 just after I upgraded my Vodacom account. Saying that she is from" Vodacom" and that I can migrate my account with data from 2 GB, which just started in March to 7 GB. My account whole was R699,00 and my new contract just started in March 2021. I said that I just upgraded and she said the this is a migration not upgrade, just more data for less money. Everything will stay the same, my period everything, except for 7MGB data I will now have an account of R729,00 per month. I agreed on the R30,00 more per month. Now my account is R729 plus R252 extra for my handset which was not mentioned and I do not have that extra money as a retrenched pensioner. I visited Vodacom Store, who said I have to contact Elite Mobile. Have been on phone for hours holding for Elite Mobile. Spoke to 2 people already (Mandla and Patrick) who said they will come back to me and reverse my migration, but nobody came back. Vodacom online also said phone Elite Mobile. Why is Vodacom giving your number for Elite Mobile to contract you for them, but if you have a problem, it is not Vodacom and where can I get a mail address for Vodacom Complaints or Elite Mobile? I want my migration reversed immediately to my old contract as in March 2021.