Bad luck dom, hope it's not to bad mate.


And also bad luck to you fellrunner. Hopefully that's you bad luck mechanical for the year.
They normally go either at the rear mech or at the ergo lever. If it snapped elsewhere you certainly have had bad luck.

I change my rear mech cable twice a year. Simply because I ride in a hilly area, lots of changes.
Do you leave your bike in the 39 ring when not in use. An old trick to take the tension out of the cable. Prob doesn't matter nowadays with modern cables but it's a trick I was taught when I was young and I suppose it's just stuck.

Oh a tip when your fitting your new cable. Set it up, adjust your indexing, then two rides after hold the rear mech then pull the cable half way down the down tube an inch or so and this will seat the cable, or take out the stretch. Re set the indexing and you should never have any skipping gear problems after.
Good luck mate