What's the nature of your dispute?
Long story. I've been using smcFanControl for years along with Intel Power Gadget, the temperatures closely agreeing. My screen started to go and I noticed discrepancies between the two temperatures of up to 30ºC. The monitor became unreadable and I sent the Mac in for repair.
When the Mac came back with only the clamshell replaced and 20º to 30º discrepancies between the CPU temperature sensor and the Proximity sensor remaining. That's when I started using Macs Fan Control. Left side fan min 2160, max 5940. Right side fan min 2000, max 5499.
I figured the symptom had been cured without the underlying problem being fixed because of the discrepancy between the two CPU temperatures remaining where prior to the problem they agreed within ~5ºC.
After a LOT of arguments between second tier tech support who conferred with engineering, I was told not to worry about the temperature discrepancy with no explanation for it.
I complained to Customer Service and sent in the computer again. According to the paperwork the logic board was replaced, the SSD was replaced, both fans were replaced, Cable I/O Flex was replaced, Cable I/O Right was replaced and the heatsink was replaced.
When I got the computer back I saw precisely the same fan speeds, both minimum and maximum, and the same discrepancy (20º to 30ºC under load) between the CPU temperature and the CPU proximity sensor. In other words no difference. Even the fan speeds were the same to four significant digits.
I suspect all they did was erase my SSD and send me back the computer.