Venom Gen 2 Twin Docking Station - Not dispatched

I recently purchased the Venom gen 2 twin docking Station for xbox series x/s. It was estimated to arrive over 1 week ago, however, it has still not been dispatched and every few days I have a PayPal notification informing me i have authorised payment to microsoft. I'm assuming the item is not in stock anymore although it was when I placed the order but now I have no way of contacting Microsoft to find out what's going on with the order. They have sent no further communications, this item is in stock at other retailers so I'd rather just purchase else where and save the hassle!

How do I contact Microsoft about an order? The website is a minefield for help and support.

Thanks.

:)