Terrible cell c service

Continuation of TERRIBLE SERVICE from Cell C. I previously submitted a huge complaint regarding the terrible service I received from Cell C.... In a nutshell,I could NOT get a Cell c signal where I live...i wanted to cancel my contracts(the one i'd lost my phone...they insisted i take out 2 contracts!!!!!).I got 3 field technicians, 1 IT guy and the manager of a division of Vivo phones to personally come to my home.....without exception they agreed...there is NO Cell Cell c service in my area.after 8weeks,dealing with cell c and 11 personal visits to head office(they won't take calls..so it's a walkin),they still refused to let me cancel!!!!I wrote to hello Peter,National Consumers council,Wendy Knowler,spoke to CSOS...Cell c still refused so my next step was lawyers....they cancelled the 2 contracts on 5th November...i paid up everything in full,they took back the phone and..i went to the bank to cancel my debit order and block anything frim cell c.....Believe it or not they have ,since the cancellation,sent 2 amounts of the original debit oder TO PAY!!!!!!!!!I advised the sales lady twice...she keeps saying she will email Cell C who deals with this! The bank says it is most *********....I DO NOT have the 2 contracts,NO debit order,NO connection with cell c..the banker said Cell C probably changes the reference no.so the "debit" goes thro....WHAT DO I DO NOW???????