Thank you very much for letting us know. We will be happy to pass this on internally to the relevant department and hope that this will be checked promptly.
In my opinion, you need to go through the Corsair service directly via their website (be careful to go to the eu platform and not the us platform). In my experience, it is sometimes difficult to obtain spare parts via resellers, even if they sell the brand and certain parts.
It is relatively quiet for a mechanical keyboard. But definitely not noticeably louder than a cheap dell standard keyboard that is available in every office.