Extremely Unhappy with their service.

I went into hospital on the 3rd of Fedbuary for sleep studies and was diagnosed with obstructive sleep apnoea, the company that needs to supply me with a CPAP machine in order to combat the sleep sent in numerous request for me to get the machine, however Bankmed still haven't made payment for the machine. I have been calling them and every-time I speak to different consultant that just gives me a new reference and assures me that they will resolve the query, I have already obtained 6 different reference numbers and still this query has not been resolved. I am extremely unhappy with their customer service. Please help as I really need this machine. I have explained to them that my sleep Apnoea is really a serious issue, as this leaves me tired in the mornings and very risky during work and driving.