When you see or hear We Buy Cars, RUN

I bought a Volvo V40 T4 in October the 26th 2022, around the 21 of January 2023 the car started losing power, switched off and wouldn't start again. I got it towed to Volvo and found out about problems that were never shared on the Dekra report. The test drive was not long enough, for one to pick up the problems and I was told and saw the service report which stated that the car was serviced in July 2022, If the car was serviced in July there would not be a problem with coolant leaking. I then communicated with we buy cars about the problem as I have had the car for less than three months. To my surprise I received an email that sates that we buy cars will not assist with my concern because there was no warranty.