Extremely Bad Service with No Definitive Response

I purchased a 2019 Ford Ecosport Trend @ Ford Fury Midrand- have 33800kms with full service history. The vehicle is in for a possible engine replacement. How is this possible. No diagnostic given with my last service. Called and mentioned that I have concerns after the service was done and was told there is no concerns. Hence I have this problem at a full service and such low mileage. I have been avoided. No definitive answers. The Goodwill mentioned still covers Fords cost at 100% and a possible further assistance on parts - possible. It's either you give the goodwill or not. I have NEVER EVER had such bad service EVER. Once thru this based on no responsibility. Never will I Ever set foot in a Ford Ever