Incorrect outstanding membership at CompCare

My wife was a main member at CompCare and I was a beneficiary. We then moved over to a new medical aid due to lower rates and bad service from Compcare. Months later I started receiving sms' that I owe them money. I don't know how seeing as I was never the main member???? I phoned the call centre and the consultant said that he could not see any outstanding amount on his side linked to me. I then made contact with CompCare using their WhatsApp number - according to the WhatsApp bot there are 4 people registered on their system with MY ID number. My wife has sent an e-mail to a lady at CompCare called Kensani asking her what is going on, but got no response. CompCare has NEVER called, or e-mailed my wife regarding any outstanding amounts, but I, the beneficiary receive sms'.