migration ***** with call centers

Vodacom migration ***** was committed on my accounts, those pesky people who call you insisting that you need to urgently migrate from your packages because they are no longer applicable, vodacom online and third party call centers, despite me declining their offer to migrate my accounts that they had flagged as needing to migrate they went ahead and migrated my phone contracts and have locked them in meaning that I cannot change and migrate to lower cost packages, this is absolute ***** and I have only just discovered that this has been done to a few of my contracts, the staff at the Vodacom stores that I discussed this with were not surprised at all, seemingly this is a normal practice that they call centers do with clients, probably because they get massive kickbacks and commissions for doing unnecessary contract migrations. How is this even possible? it is plain ***** being committed to many many clients who are never aware of this. So try to get hold of Vodacom ***** line, no sorry they say that (after being transferred to at least 15 different people at customer care) no one cannot speak directly to anyone in ***** department because they can only be reached via email. the lady that tried to assist me last week said that I should come back during the week - sit at vodacom store and get a consultant to help me because- as she put it, best that I sit with you and log this complaint as you may get bul**** by them into believing you have done this yourself.