Well in the end, having failed to do an online chat, failed to get an answer on their central number and of course failed to complete the order online for delivery, I tried a new approach,
I rang the local branch number and asked if they could order it for me. Quoted the part number and "yes, we can get that, be here Monday dinnertime"
I checked the price with him then and have been this evening to pay and pick it up.
Does anyone want to play "guess the price" for my lovely new CV joint (includes rubber boot and hub but too)
I'm pretty confident, unless you cheat and look on GSF's website, that you won't get it right!