Hao's TV

I tell the customer with the written agreement on the invoice #*** for the troubleshooting fee will be the $and for the repair will be $600, he agree and sign the invoice , after half and hours for troubleshooting and find out and let him know that the tv was shorted circuit cause by power
outages , and did not want to repairs the tv and paid me for troubleshooting fee , instead of $, I charged him only $150, he agreed and paid forThank