Goldwing Appliance Factory Service

This business is horrible. We bought a house that had one of their appliances in it. The stove had a problem with the touch screen they fixed it before we even saw the house. We went to use the stove self clean and now everything is not working or responding. I called them to come fix their bad parts they replaced and since the house was on the market for the 90 parts warranty they said they aren't obligated to fix it.I understand they aren't but to hide behind a warrenty when they never fixed the orginal issue it bad business.