Oxy-gen - unauthorized deductions. No paybacks up to date. Client just ignored.

My late sister hired an oxygen machine from Oxy-med but passed away on 12 July 2021. I cancelled the contract verbally and in writing a day or two after her passing and requested Oxy-med to come and collect the machine on numerous occasions. Proof of this is at hand. Her husband cancelled her subscription on the medical aid but somehow Oxy-med manage to switch the billing for the Oxygen machine to his name (he does not need this machine), without a prescription or authorization. This funds were taken from his savings account at the medical aid. . When he needed medical care this year, he found all his savings were used up. because Oxy-med took money from his savings without authorization. Oxy-med was informed of that, and at long last only collected the machine from him on 2 August 2022. I was informed that he will be refunded, but up to date nothing happened. My numerous emails, whatsups and telephone calls are now ignored, and in the meantime Mr. Swarts must pay all his medical tests out of his pocket, something he as a pensioner cannot afford. I really tried my best on at least a weekly basis to sort out this problem, and have his funds returned to the medical aid, but to no avail. I see now there are also other unhappy customers. Terrible service and so frustrating:(