Well, the engineer turned up within an hour and found the main problem straight away.
The install tech had input the wrong serial number for the V+ box (added an extra 9?) so the card wasn't paired. This I already suspected as on the Tech info screens the CA IPPV & Card status both said "never paired". Anyway, the saga continues- the engineer rest everything and spoke to someone at Vmedia asking them to reset the account etc. & send another hit to the box.
Now it's Sunday morning & still only got basic channels, kicking my heels till 10am. so I can ring faults again.