If you go to the
search page for the alternative numbers database, and type in
jobcentre
, a long list of numbers will be shown.
The top two entries give some suggestions. The first one gives an alternative to the central 0845 604 3719 number, and as this the published number for all Jobcentres, then they will be able to help you, just as if you'd called the 0845 number (but without the premium charge).
The second entry links back to a posting I made on this thread previously, in which I set out guidance to finding a working number at local Jobcentre branches.
I suggest you use the central number and get them to redirect you from there as that is how they like general calls to come in (rather than direct to branches).