failure to take accountability.

After 16 years approximately of having more than one cellular account with autopage. I took delivery of a cat s50, the device microphone has given in and I struggle to communicate with anyone I call. The device has been back to cat twice now. I purchased a device cash to use in the interim and now have no need for the cat. The buck gets passed along. I want either a new device so I can sell it to recover my outlay or a rebate to a no device plan. I have even heard from the one salesperson that they no longer stock the cat due to problems. Why should I continue to pay for junk.