Move from Contract to Prepaid

I have been using my number for over 10 years. 5 years ago I was offered a contract package on my number which I accepted. I renewed it 2 years later until I decided to cancel it early this year. I am been using an old blue sim card which, a month ago when I wanted to get a new sim thru a sim swap I was told that I need to buy a R67 contract sim card instead of the R1 prepaid one. I have gone to different Vodacom stores 3 times and after explaining this to the consultants (on 2 stores) they were just as puzzled about why I cant be moved back to Prepaid as i am no longer on contract (for over 6 months now). I have called the contract, prepaid and resolution departments and to this date i am still struggling. I was told what to say to the Contract and Solutions departments. I was given ref. numbers: A2-6IEQ-A5Q12E and 1- ********** ********** and promised to be contacted within 48 hours but nothing has happened. I received an sms to send a copy of my id, 5 dialed numbers and the new sim card number to ********** and received automated replies confirming receipt of my emails however I am still getting smses to send the same email. Is there anyone who is employed to resolve queries and make customers happy or is the company only interested in customers using their network?