Nokia links do not work for me.
I was going to ask if they had a 4 port in there van when I get my install as I might have a separate service for our 'Holiday Letting'.
It depends if your build is a Nokia PON or a Huawei PON.
Before these if your street was on Nokia hardware the existing Huawei 4 ports couldn't be used.
You would get a 2nd ONT and 2nd fibre drop.
They will install single port Nokia ONT's initially and when a subsequent provide order is placed an engineer will swap out for a 4 port. Ordering both services at once might achieve a 4 port ONT if communicated well with the ISP.
Edit: links don't work for me either
2nd edit: fixed links to images