CHEYENNE, Wyo. A cell phone used by a Wyoming 13-year-old to run up a nearly $5,000 phone bill will text no more thanks to her angry father and his hammer.

Dena Christoffersen of Cheyenne sent or received about 20,000 text messages over about a month, and her parents' phone plan didn't cover texting.

Gregg Christoffersen told KUSA-TV of Denver this week that he thought texting had been disabled on her daughter's phone, which he smashed hours after getting a phone bill for more than $4,750.

The family says Verizon has been willing to knock the bill down to a reasonable level.

Dena has been grounded until the end of school. She says she feels bad and has learned her lesson