Verizon- Being charged for Sent Msgs. when only receiving msgs.

I have a problem with Verizon's Text Messaging service. I am currently being charged for sending messages ($.10) that are actually messages I have received. I never send any messages from my phone, I only receive Message Alerts that I have setup on the Verizon website. I did not opt to get the Text Msg (100 for $3.00) package because I felt it was not worth getting. I currently average about 90-110 alerts per month, which should only cost me $1.80-$2.20 per month, instead I am being charged over $10.00.
I called their Costumer Service and they are investigating the issue. They say it is most likely a Billing problem and not a technical issue.
Has anyone else ever encounter this problem with Verizon?? Is so, was the problem resolved??

Thanks
Mike