His cellphone bill now runs him about $11,000 a month.

Such messages can add $5 or more to a monthly cellphone bill.

You forget that your cellphone bill was 15 months behind.

The charge is typically added to the cellphone bill.

And a consumer is unlikely to try to obtain free music by saying "I'm not going to pay my cellphone bill," he said.

A 49-cent charge appears on the user's cellphone bill for each question.

And while each amount may be small, the effect is that cellphone bills are noticeably higher.

But when you tally your cellphone bill at month's end, it may count for a lot.

"Last month, I ended up with a $600 cellphone bill because one of us talked way too much," he said.

"My cellphone bill was atrocious because I had agents calling me at all hours," she said.