Razer Huntsman Opto-Mechanical - Key Spamming & not working

Hello, I have a Razer Huntsman Opto-Mechanical keyboard with the French Azerty layout. Two days ago, after working flawlessly for about 2 years, I noticed that my E, S, D and X leys were not working anymore. When reconnecting the keyboard, I opened Word to check if it did anything, and noticed that in the first few seconds it will spam these 4 keys in the exact same order. Afterwards, the keys are unresonsive when pressed. I tried the following fixes:

• Hard reset the keyboard with ESC, Caps Lock & spacebar
• Keyboard firmware update
• Clean install Razer Synapse
• Clean install keyboard drivers
• Checked if an accidental macro was assigned to the keys
• Checken if sticky keys were disabled

None of these seemed to do the trick.. Any suggestions? As all indications are kind of pointing towards a hardware problem, does Razer actually have a repair service? Thanks in advance!