My mom is 92 yrs old and on oxygen 24 7. Since her doctors are over 1 1/2 hours away it was recommended in November of 2016 for her to get a portable oxygen concentrator. After numerous paperwork being sent in by her doctor and Lincare saying they never received it and after many phone calls by me being made to the Worcester, MA office we still do not have the equipment. Their excuses have ranged from it was lost, it was never received, we are waiting for your Dr to send it to us then oh it has been approved and we will call you at the... read full review »