charges for items not used by the patient

This company contacts a patient that is not even responsible for the bill ,they harass a patient 2 months after the test are taken in hospital ,charge for an item not used on the patient ,emails after emails ,messages and calls for an overdue account not even received a few weeks ago ,have some standards please ,if you had to use a specific gown take it with the hospital how are you allowed to harass patient for R121 so many times a day stressing the individual out disposable over shoes and a gown that was not used by the patient and i was witness to this so whose bill are you now charging to us ,when you are booked into hospital and put into the covid ward although you are covid negative all these additionals are brought and nowhere it is stated that the company running test will charge it to the individual ,my mom was in for a nose bleed no covid so why couldnt they take her to the facility instead of charging everything knowing the medical aid wont cover just a cheap way of making money