System error costs clients money

A "system error" resulted in my line being suspended even though the account is 100% up to date. When speaking to the agent, she explained that it would take 2-5 hours for the line to be restored. As a commission earner, this is a very large problem as my phone is my income. I am disgusted that a line can be switched off without any notice or reason, but when it is requested that the error be fixed, one needs to wait this long. Who does one send the invoice to for loss of income that is incurred in this time?