Broken Dishwasher

Our Call Ref ***6 regarding our Dishwasher that needs a replacement part as it is within warrantee has been ongoing since the 21st February. We have been given the runaround from the technician that was sent out with the wrong part and each time we followed up after Makro said they will escalate the call. To date we still sitting with no Dishwasher or a solution! We have been put on hold for over 40 minutes now. TOTALLY UNPROFESSIONAL!!