T-Mobile charge 10c for every line of an IM conversation!

Its worth checking the small print of your cell phone plan:

Amazingly, T-Mobile are charging me 10c every single time I hit return, while using AIM on my Blackberry. They treat each individual line in an IM message as a separate text messag - which seems like a total scam.

Can you imagine the outcry if using Instant messenger cost this on a computer?

"Instant Messaging Use your existing username and Yahoo! Messenger or AOL Instant Messenger to see who's available, then chat instantly--just like on your computer. Each instant message sent or received is charged or deducted as a text message. You may also be charged for all the administrative functions such as buddy list updates or signing on and off. "

My T-Mobile » Plan & Services » Included Features