Philip Puszka always checks his Fido family cellular phone bill closely. When he got one that seemed too high he investigated.

"Seems quite excessive," Puszka said.

He quickly discovered the reason --51 premium text messages costing $63.75.

The "premium" text messages had started when his daughter signing up for an online IQ quiz she found through Facebook. The quiz looks like a simple game but if you look closely at the fine print on the border you'll see that it's going to cost you five dollars per week for three text messages. And you are billed through your cell phone company.

Philip contacted Fido and says was told "you've received the texts and you are going to pay for the texts."

The president of the Canadian Wireless Telecommunications Association, Bernard Lord, says in order to be charged consumers must opt in twice.

"We suggest to consumers to be very careful with your cell phone numbers and not to give it to anyone for any reason," Lord said.

He says you sign up first online by providing your cell phone number. Then you get a text message outlining prices with a pin code to reenter on line. He says if you type in stop or just delete the text message you are not signed up.

But what happens if you do that and get a bill? Lord says he wants to hear about it.

"We audit these numbers to make sure that they comply with the regulations and if they don't we will pull their numbers," he said.

At any given time there are 400 of these premium text message programs operating in Canada. They include services allowing you to donate to charity, to meet new friends to alerts from TV networks.

Be aware of all the charges before you sign up because when you type in your cell phone number -- you're half way to giving someone permission to charge you.

"It's another way of accessing money out of your pocket that's all they are interested in is your money," Puszka said.

And since Philip Puska's daughter was too young to actually sign up --according to the fine print on the IQ quiz -- he's looking into whether the charges can be reversed. Meanwhile, he wants all parents to warn their kids about online "games" that aren't fun when the bill comes in.

One other thing to keep in mind, all the wireless providers now have a code of conduct that you should read. It gives you additional rights you may be unaware that you have.

With a report from CTV British Columbia's Chris Olsen.