Damaged my CPAP machine and *********ing with quot

I have a CPAP machine that I bought at VitalAire-ThreeRivers. I got it to help relieve my sleep apnea. The machine has worked very well without problems. In Sept14, I took the machine to VitalAire-ThreeRivers for a service. They told me that my machine is very well looked after, and it was not necessary for a service. I got the machine back in Oct 2014. Upon return, I used it for 2hrs before it stopped working. I took it back on 23 Jan 2015. Zani there confirmed that the machine only worked for 2hrs per a data card inside the machine which told. On 2 Feb 2015 VitalAire sent me a quote for R8018 to repair my machine. I was upset and called Zani for an explanation. I told Zani and Dana that I was extremely unhappy to have to pay R8018 for my machine to be repaired after only used for 2hrs. Dana promised me she would get back to me. After hearing nothing, I contacted her in Feb and March15 where she promised me again to call me. I have been waiting for this call for 2 months since 10 Mar 2015. The ThreeRivers branch still has my machine. I find it unacceptable that I am being *********ed to pay R8018 to be able to sleep peacefully again.<br> Zani:***<br> Dana:***<br> Please help!