does Cell C legal department exist or we just being *****ed

i had a contract under the cell number ********** 545 , which then went in arrears, i was then told that it was escalated to the Legal Department, i have been paying the account and the reference that i have been using was my cellphone number, 3 months ago i lost my phone and then went to cell c to do a sim swap, i was then told that the number has been allocated to someone else , i told the cell c agents that i have been paying the account using the same number as the reference and what are the implications since the number does not belong to me anymore , and no one could give me the answered, i was referred to legal department , i have been calling the legal department for the last 3 months and no one picks up the phone , i was even given the number ********** 600 , still no one answered that line.does the legal department exist in cell c.please get someone to contact me asap as this service is pathetic.