Accounts department at Medicross Cape Road Port Elizabeth

My son went to Medicross Cape Road, Port Elizabeth in February 2024. This was for a bite-bit as he grinds his teeth when he is sleeping. Firstly, I was told that the dentist will do a recommendation to the medical aid as a bite-bit is seen as non-medical. The recommendation letter was done by the dentist and handled by reception. At no stage was I ever informed that this was rejected by the medical aid. Three months later, on the 7th of June I get a sms to declare that I have an outstanding account of 90-days. Not once did I receive a phone call or an invoice for this account. Seems like all medical places just do the same thing, the accounts department won't inform you, yet they will threaten you after a period of not paying said account that you had no idea about. It is really time that admin/accounts people in these positions start working with the clients and build a positive relationship rather than creating a monster. Benedetta