Need a little help for a friend with a Tour.

[photojenius27]

My friend just recently purchased a Blackberry Tour with Verizon and she had to get it replaced because the new software was messing up..now when she had the techs at Verizon to put in the new software...all calls are long distance and it'll ring by itself..is that something she needs to still take back or is there a way around it that the techs just aren't spilling about but someone here might know of?

Another thing..the tech's told her not to download any apps on her phone saying that could be the cause of the problem..but if she is getting them from a blackberry app store and apps made FOR the tour then how can that cause any issues?