Issues with HP Zbook Power G10 repair

[panoulix]

Hello, I got a ZBook Power G10 i7-13700 model which developed a fault after a few months of use. 

Originally it couldn't power on at all, then after reaching the HP support and leaving entirely disconnected from the mains for a couple days, there was a smell of a burnt component on the mainboard and a popping sound every time I was attaching the charger (indicating this is not an expected behavior, hence I didn't want to risk my chances any further as there was an imminent risk of a fire hazard)!

I mentioned this to HP Support and they mentioned they would send an engineer to repair the unit, as I was entitled to onsite repair.

After a couple days of waiting for their engineers to contact me to arrange an appointment for the repair, the HP Support decided to send the laptop straight away for a repair to the repair facility in Poland, which I accepted.

2 weeks later, the HP facility in Poland sent me an email claiming the spare part needed to repair my unit was not in stock with their supplier. They didn't mention what this was and what parts have replaced either (if any) to conclude what the defective unit was.

A month later after the original pickup date, I receive an email from the local country HP support that I opened the warranty claim, mentioning they need the proof of purchase to proceed with any further with the unit. 

For a start, I am given this laptop brand new with the agreement to be used as a part of my services at a previous contract which has now ended and the ownership of this laptop is solely mine since day zero. 

Secondly the serial number covers the warranty from the day of manufacture on business units. Obviously for a unit that is 3 months old from the date of manufacture, there is no warranty dispute at any stage and for absolutely no reason at all.

Thirdly, i tend to believe that HP Support are deliberately claiming excuses to buy time until they manage to repair the unit instead of entirely replacing it.

For now, the situation is that my laptop is still in the repair facility in Poland and I remain unsure as to if the spare part is already there, if the laptop is repaired (or going to be replaced) and what was this faulty part. I my past experiences with HP repairs via the repair facility in Poland, the process was taking a maximum of 10 business days and there was always a break down of repair actions and items that were replaced.

As my last experience is really far below of what a Professional Customer Service would be considered and I am just one step before escalating this to my legal advisor to pursue further, I am reaching this community in case other users have had similar experiences and I am seeking for a solution without needing to go the hard way.

Looking forward to your suggestions and experiences.