[mac+htc]

Hi everyone,
I have a question....I am a Verizon Wireless customer and I purchased an HTC Vogue (xv6900) from eBay. The device is Alltel branded and I wanted to activate it on my line. When I went to do so I was told by 3 separate reps that it could not be done because I was a Verizon plan and only Alltel phones could be on Alltel. They said this is because they are trying to get everyone off of Alltel devices. Is there any way I can flash this phone or hack it so that Verizon will activate it on my account? I have already unlocked it and put a 6.5 rom on it. I was thinking I could just dial *228 and use option 3 since I am in a coverage area but the automated system doesn't give me an option 3 and when I push it anyway it says "that is an invalid entry" Is there anyway I can get this little guy on verizon?
Thanks so much!