My *** Phone Suspended

I called vodacom on the 20th Nov. 2017 to migrate my contract to pre paid as from the 1st of Dec 2017.It was then agreed. To my surprise later on that day my phone was not working, saying it is suspended.

I called vodacom immediately that night, i could not get help because people on that department are not there, i must call tomorrow.

The following day, 21st, i call again, being transferred from pillar to post, unti i was told it was a mistake, it will be opened in 24 hours.

Until today my phone is still not working and i am still paying because it is contract which they debit monthly.

Send several emails to vodacom but still not getting any help, i don't know what to do anymore. Please help.