Defy poor poor service

Again Defy Cape Town fail to disappoint with after sales service. Previously had an issue with a fridge repair and now a month trying to get a brand new oven replaced after all efforts on the part to repair has failed. Christopher Tomlinson can never speak to as the Manger and doesn't return calls, Kathleen promises to have things resolved well all empty, if I don't keep calling nobody calls me back. I trust this complaint will be seen in a serious light as clearly Defy appliances and there after service is not what it used to be!!!!