Called this service to get help with the semi. Was told they needed a $350 comcheck code to come out to do the repairs. Got them the code and they called local people to help. THe first day they took $200 off the comchek but never sent money to the company who did the work. When I called them back they said tey still had an invoice that was due. Took another $200 off the comcheck code with out approval. When I tried to call them again, they hung up on me and then refused to answer the phone again.