ok, so after some vodka i decided to spark up one of the Amiko A3, also running oscam via webif.
on comparing the following files there were differences between the Amiko that was working v the wetek that wasnt
oscam.user
DVB-Api
oscam.DVB.Api
on copying the differences from the amiko versions to the wetek versions and a restart of oscam, all is good
obviously more to do with luck than skill
T71