Mis sold a dishwasher.

[whatsleep]

I'm posting for a friend as she is pulling her hair out right now. Her dishwasher stopped working, repair man from local electrical company said dishwasher broken and sold her a new one, she brought through them as they were able to fit it the next day, the new one is having exactly te same problem so she is thinking it must be to do with the pipes etc rather than the appliance. The old appliance was taken away by the fitter. So what can she do? She has now spent £400 on a new machine when the old one was probably fine...