Blade 15 Base 2019 Fan rattle and battery swollen

Hello, my Blade 15 (2019) got some serious fan-issues. Step by step both fans were getting louder during the first year of usage. Despite cleaning the fans with compressed air it didn't change. Now, all of a sudden, the right fan started with an extremely loud rattle sound and I can't find a way to fix it. Have you got any suggestions? When I opened the notebook lately to clean it once again I noticed the left site of the battery was swollen, so the backcover could barely fit back on the device. Thank you for your help, Blue Note I uploaded a video to show the problem: https://we.tl/t-bZgEG8pY63