Samsung Service Sucks

Our Samsung Waterwall Dishwasher we purchased in 2015 is giving and LC Error code. This machine is only used on weekends. We have logged numerous calls with the Samsung technical support center since the 10/5/2018 (today is the 8/6/2018) and have the reference numbers to support it. We have been back to the store we purchased the machine from, twice, in the hopes they will be more successful in assisting us. All we want is for a Samsung technician to come out and fix the problem. We had one person phone us to say they will have to come and fetch the machine, but must first speak to his boss. Nothing further has happened and that was 2 weeks ago. The store contacted us to find out if Samsung had been in contact with us, as the technicians claim they have tried to phone both my husband as well as myself with no answer. We have not received any calls nor any missed calls.... This is very poor service from Samsung. If I have to buy another dishwasher, it wont be a Samsung. Don't buy Samsung