bad service

In September 2017, my husband was admitted in to Hospital, he was diagnosed with having low levels of oxygen. In order to assist him the doctor prescribed an Oxygen purifier. On the day the Oxygen was delivered we had to make a payment, as we were told that the medical had to still be approved but that when the invoice goes through the Oxygen company, Oxygen CPT will refund us. It has been a long battle to get the monies paid back with the excuse that they need to keep a deposit, which we were next told at all. now they come to tell us that the machine needs to be insured, which again we were never told. Apparently it is in our contract, of which we have never received a copy. It has been an endless and really unpleasant experience. It has really the worst service we have ever received from any given business.