Problem with SMS and MOVISTAR

[melin]

Hi guys,

I'm sad of my UNI with Movistar, I have upgrade a lot of versions of WM5 and WM6, and in every upgrade of rom or radio I found that the Phone freeze and lost the signal G or 3G, and the SMS are received with 1 or 2 days of delays.

Any suggestions?

Thanks
Melin