This happened to me. I had an employee and he had a cell phone. Even though I warned him that he had limited minutes, he abused the privilege and he started using the phone for HOURS every day. He racked up a huge cell phone bill that topped out at over $900 for one month.
I called Sprint and I told them my story and they were willing to forgive some of the charges. But I got into a serious discussion with the service representative regarding their pricing policy. They charge $.40 a minute if I exceed my monthly limit. I understand and feel that is excessive but I accept the pricing. It is part of the agreement.