Haha, some things never fail to surprise me. First of all thanks for the sugestions for alternatives, I’ll get on those in a bit.
As for the spares thing. Here is (the last of) correspondence this morning with Hargroves Cycles where I bought he bike. I contacted them having contacted Specialized directly and being told to go back to where I bought the bike. This was after 2 weeks of waiting:
”We can only offer advice that we have been offered by specialized and I can assure you that we have search high and low to see if we have anything that would be suitable for the need but I am afraid that we do not have anything as spares. Specialized have said that they do not offer the part as a spare which I agree is not very good but I am afraid we can only offer what we have or what we can get hold of for you. This is why we suggested taking it to a local bike shop where they may be able to offer an alternative solution or advise something else that would work. Please feel free to contact Specialized via email with a complaint about not being able to source the part as spares. We as Hargroves Cycles do not keep spares like this but have really tried to find something to help.
I expect if you wrote to Specialized with a complaint then they may be able to source something but it is not something that we are in the position to be able to get.
Hope this helps and you are aware that we have spent a lot of time trying to source a solution for you but are afraid they is nothing we can offer.”
Kind Regards
Mail Order Team Hargroves Cycles