I recently got back my laptop from an Out of warranty laptop repair service from dell.
The primary issue was power limit throttling and overheating. The repair center changed the following components in my system.
1) Motherboard
2) Heatsink
3) Hard disk
I know for sure that System memory components don’t cause heat/thermal throttling.
And when I got my system back, I realized that my 1 TB SSD was missing from system. I raised an issue to the tech support, and after an investigation, they claim that the repair center has received the system without the SSD.

Now, that’s impossible as the SSD had my OS on it. So, I couldn’t have shipped my laptop to them without an SSD.
Instead of getting my laptop back with my data intact, I got it with a replaced HDD and a missing SSD.

Now, I don’t know what can be done to take it up further, as I don’t even get responses to my emails. My friend suggested to inform the BBB first. But I don’t want to go that route without being able to take it up to the dell Alienware department first.

Thanks and regards.