COST, DME and INS.
I have gone through this whole thing and at first I was furious with my DME folks, however I have since educted myself. I still am not happy but now its not with my DME company but the whole INS racket in general.
Your added costs seem very normal, not liked but normal. A few things to research and understand. DME companies DO NOT SET PRICES, they accept different INS "ALLOWABLES". BCBS may pay 1200, Medicare may pay 1800, CIGNA may pay 400 all for the same machine. Also think back to your first order when you got the machine ...you got (1) CPAP (1) Humidifer (1) long gray tube (1) mask (1) headgear (1) filter now if your INS is only 80% like mine then they paid x mount and the rest is your responsibility, THAT SUCKS BECUSE OF TEH PREMIUMS WE PAY !! but that is not our DME companies fault but the INS.
Another point mentioned was CPAPMANCOM (LOVE IT) for broken masks that INS will only cover every 6 months they are way cheaper,, but the units on CPAPMAN are sometimes refurbished units (nothing wrong if you have no INS) and they are never able to be submitted directly to your INS so you will pay 998.00 out of your pocket versus the 400.00
Last point mentioned was post about DME not wanting the humidifer back, hince the inflated cost. Mine went out due to a error on my part but since it was still under warranty they replaced my unit free of charge, the maker (respironics) did not want the unit back shipping and repair cost more than replacing, hey it's just like the 1.27 cost of a colored shirt at wal mart for 19.99 there is a markup on everything. Cars generally cost under 12,000 but can sell for 38,000 (more or some of your big names, PS dont ever look into that you will really get mad) Anyway so the DME co, can fix it the manf dont want it so you get a new one.
Anyway, i had to pass along what I have found out, BTW my new job INS BILLER....if you only knew the rest of the story