Thanks guys for all your help so I think the wording of my original post threw some people off. So the coffee machine is what I expect to be working as normally in the fact that it does pull a shot. But the issue was that no matter what I did the pressure gauge did not move.
As aJohn said even with an empty dual walled basket I expected some movement in the pressure gauge even if it was slightly, I then tried the same test with a single shot dual walled basket with cleaning disk in as I saw the same test moved the pressure gauge a substantial amount. And still no reaction.
So this morning I set about pulling the biggest shot in all of Christendom made sure to overdose the basket and to tamp the **** out of it. Ensuring that I would get an overextracted coffee and therefore a very high pressure, but alas still no reaction in the pressure gauge.
Apologies I never posted a video but as mediumroaststeam said it was late last night and I had spent about several hours on the thing trying to get a reaction, actually got more of a reaction from my wife than the machine but alas it was all in vain. And since my morning experiment saw no signs that the gauge was working that was confirmation for me.
Apologies again and please don’t feel I ask for help just to ignore it and do my own thing, I did read every post and utilised the information accordingly.
edit: so I have contacted the seller and luckily they have one in stock to exchange tomorrow so will update, unless I don’t in which case assume I have ran away tail between legs in noobish disgrace.