Double billed and credit passed to my ex husband

This all began in October 2016. My now ex husband and I had started our divorce proceedings and decided to apply for a transfer of ownership for my cellular number. We first went into Vodacom Eastrand Mall, where we both had to be present to complete the necessary documents. I received a message saying that the transfer was a success. However, that is still not the case to this date (13 January 2018!!!) I have been into Vodacom La Lucia Mall and completed all the necessary paperwork for the second time to be told that it has been transferee. Once again, this was not the case! I have been back to Vodacom Eastrand Mall where I sat for 2 and a half hours and was told that they would get back to me. I have just opened my invoice for January 2018 to ONCE AGAIN see that my cellular number is still combined with my ex husband and to see that I am still being billed twice! My account number with Vodacom is l ********** -8. I have been incorrectly billed for 14 months now! At my recent visit into the Vodacom store in Eastrand Mall where I received no assistance other than Vodacom has credited your account for one month but it unfortunately was credited to your ex husband’s Vodacom account. I cannot even cancel my contract with this useless cellular provider because when I call into the accounts department I am told that I am not the account holder nor is their an id number attached to my cellular number!!!!!!!!! This is absolutely disgusting on Vodacom’s account and I will seek legal advise regarding my account with them.