Hello NickVieru,
Thank you for reaching Microsoft Community.
I'm sorry to hear about the issues you're experiencing with your Surface Book. It sounds like you've already tried a few troubleshooting steps, but it's possible that there may be an issue with the battery or the charging port.
When it comes to repair choices, Microsoft only offers the option to replace your Surface Book rather than repair it.
There may also be third-party repair shops in your area that specialize in Surface devices. However, from a Microsoft standpoint, we couldn't recommend any specific repair shop. I would recommend doing some research and reading reviews to find a reputable repair shop. Please note that any repairs done by a third-party may void your warranty with Microsoft.
Kind regards,
Lavenia