Poor customer service

Purchased a Skyworth 55inch TV on layby on 31 July 2021. Completed the layby on 31 October. Tried for a over a week to contact ok furniture without a y luck. Nobody a swers calls. Eventually managed to Contacted ok furniture and was informed that none of the branches in the durban area had stock. Was later informed that the tv that I was sold is phased out a d cannot be obtained. After several emails a d threats I was offered an upgraded version to which I have accepted. I was later informed that they are waiting for stock. Again after several emails a d threats I was informed that the stock has arrived but was not given any option to collect my TV despite asking on numerous occasions. To date I have not received the TV nor have I been informed as to wen I can collect my tv. To get any feedback I have to threaten and nag. This is poor service and is frustrating.