For the past several months, I've been getting incorrect data usage alerts via text, and now also via email. When I check my usage on my phone, and also on the website, it is not even close to what the alerts are saying. Why am I getting erroneous alerts? Any idea how to stop them? (I have a co-worker who also has Verizon Wireless, but a different type of phone, and he has recently been getting similar incorrect alerts via text.)