Dishwasher repair

This company claims to have experienced technicians but they don't. They came and took away our Smeg dishwasher and returned it a few hours later claiming they had changed the pump and seal - it was leaking even worse when returned and it had an error message when we did a test run. They became aggressive when confronted what they had changed and insisted on coming back to repair it again. We did not want them to make the matter even worse. The "repair" cost R2280 - money wasted!