Express Appliance Repair

I have had repairman out three times and still do not have dish washer working properly detector motor main mortar changed is this what you do to costomers or what 700 dollars paid and at this point we should have just bought a new dishwasher but we were taken by the express repair and now it goes to voice mail a service that states open 7days a week service from 7am to 10 pm but recording leave a message take the money and run I will report this company we are seniors that was a lot of money for us and machine only 4 years old