WORST SERVICE FROM CELL C

WORST SERVICE Its been 3 months that they delivered the wrong 2 devices to US. We arranged for collection back which was done. They are still billing my account and getting arrears messages and calls for DEVICES WE DONT HAVE !!!!!!! Everytime they will get someone to phone US back. Still nothing gets done. Unnecessary bank fees for no reason. Wont ever do business with them again.