Awaiting motherboard replacement for 6 weeks and counting HP ZBook Fury 16 G9

[Eclipse2017]

Sorry to impose my woes on the community, but I'm getting a bit desperate. My HP support HQ is Latin America and the Caribbean. 

On November 30th 2022 I logged a case with HP technical support describing system freezes, among other things. The technician diagnosed a motherboard and trackpad problem and ordered the replacement parts for me (to be installed by the nearby HP service center). 6 weeks later and parts are still backordered. I have of this week requested a replacement machine as my machine is, essentially, brand new, and as parts do not seem to be available. No response from HP on replacement. Note that this is an $8000 USD computer. 

I have been forced to purchase a Dell Precision Mobile workstation to enable me to get my work done. At this juncture, my impression is that HP Latin America and the Caribbean just doesn't care, and there is a seeming lack of urgency on their part to get my system working again. 

Is there someone at HP in the US whom I may contact to escalate this issue, please? Thanks for the help, everyone. 

[Eclipse2017 · Accepted solution]

Update: HP finally replaced the motherboard this week. Problems solved. 

[JParry]

What were the symptoms of the system freeze?  How frequent and when did it happen etc?  I'm interested to see if it's the same as what's happening on my system.