BlackWidow Elite Green switch - high pitch squeak on normal keys

When typing at speed some keys (eg the "F" and right arrow) will emit a very high pitch squeak. These keys don't have a spacer bar and the keyboard is brand new - used less than a day when it first exhibited the behaviour. I tried customer support but I think they only have bots. it kept asking really stupid questions and they wanted a video, which I haven't gotten around to doing yet.