Billed for Prostesis for Covid no one can explain

I was admitted to Millpark with Covid pneumonia on the 28 May 2021. I was discharged 2 months later on the 29 July, with oxygen. Mentally and emotionally I am going through hell at the moment. Now I received one message after the other for an amount of R47000 for a prostesis ..........?????????? I had Covid NO prostesis. Now they have me play this game, medihelp is saying I must contact Millpark. My hospital bill alone was R2.1 million rand I survived the ventilator and the ECMO now I must die of stress afterwards what did I fight for. I lost my job, we will soon be loosing the house and the car, what else must I loose through this Covid epidemic. Please someone just give me an answer because I cant play this game anymore I did not ask to get this desease,