BB Tour 9630 :: 1XEV To 1xev - Calling Phone Would Make A Busy Signal And Say "CALL FAILED: PLEASE TRY AGAIN"

Sprint 9630:
My phone out of no where went into 1xev and will not go back to 1XEV. Sprint said it is a device issue and i need to have the device replaced. I told them i do not want a refurb since my previous device had to be replaced 4 times (8350i). He said he would see what was in stock, he then told me that he could not replace the device at all since my previous device was replaced so many times. He referred me to "multiple device replacement team" who said I had had to many replacements and that he couldnt even replace the device. He said I need to go to a service/repair center so they can see the phone.

Has anyone had the same issues with the 1XEV dropping to 1xev and not coming back? My service books will not send, my HRT message will not come, (it does say sent, but I never receive the actual registration message), I cannot update profile or preferred network list (says unable to update, if problem persist contact service provider).

2 days in a row, prior to this, every time I tried to call out, my phone would make a busy signal and say "CALL FAILED: PLEASE TRY AGAIN" and when my wife tried to call, it went straight to voicemail.

Now, I am making calls ok and receiving text just not BIS data: (Internet,BBM,PIN,Email)
FYI: I have not made any software updates or anything receent. I am running 5.0.0.624. Have been since May.

Any suggestions on what may have caused this and if there are any suggestions tech support left out?

Also, I really dont want a refurb, how can I get a new device as opposed to a refurb? I have had this device since Dec. 28 or 29 and have had no issues with the device. I dont want to use my upgrade since I havent had this phone a year and would like to save that for when a better device hits the stores.