Electrical Jack problems of the 2019 Jeep Compass

Vehicle will not start. 1st time was the day I purchased the car with only 41 miles on it . I had it parked at my home and entered the vehicle to go somewhere when I pushed the start button the radio and ac came on and the screen said on however it would not turn over. Don jackson came and picked the vehicle up which at that time it cranked up with no problem. They had my car all day. 5 days later the car did same thing now don jackson has the vehicle again. The car has 88 miles on it and I had it for 7 days in which 3 of those days the dealer have it and can't find the problem.