We had access to the home phone and wanted to beat the game. So of course, we called the number a few times to get hints on how to beat hards parts of the game. This was before the internet where you could just lookup a walkthrough online.
You can imagine my mother's shock when she received a $200+ charge on her phone bill for a phone number she had never heard of. Apparently the cost of the call was about $5/minute.
We got yelled at and we weren't allowed to call the number anymore after that. I'm proud to say we still beat the game though.