UK No service at all

Have global pass on two lines.  Landed in UK yesterday and phones report no service.  Have chatted with support and they didn’t get anywhere.  Told me to call some number but I don’t have any service to do so.  Removed and readded eSIM on my line but now it states it failed to activate.  Have rebooted phones, etc and no change at all.  

what else can I do?