Hello, L_717.
Welcome to Microsoft Community!
After reading what you posted, I understand that you wish to seek hardware support services for this Surface Laptop 3 that won't power on.
Apparently, this device is out of warranty. And at this point of time regarding the cost of repairing this device, you can refer to the content in the link below:
Next, I am going to share with you the steps to create a repair service order, so please follow the options completely as they appear in the screenshot I have provided for you so that you don't end up directing you elsewhere:
- Use your personal Microsoft account (not your organization account) to access the following links:
- Type Surface won't start, press Enter, and click "Contact Support" at the bottom:
- Select Technical Support and select the device model (Surface Laptop) you are currently using in Product family, then click Confirm:
- You will see contact options for Chat support and Phone support, please contact them during business hours:
I wish you all the best.
Best Regards.
Leo.L - Microsoft Community Support Specialist