This company is a scam. Terrible customer service. I have two insurance coverage. Lincare never send claim to insurance company, instead send me $450 bill for CPAP, the reason: the usage does not reach threshold. I call 3 times ask help because unable to use properly in the night. Only receive one call back, told me to call my doctor. Then receive a nasty letter, told me to call my doctor for the issue I have, and keep telling me they will bill me I am not going to pay a penny, if you want to sue me, go ahead. I'd be more than happy let the court to hear this, if you want to send the bill to collector, go ahead.