I upgraded my old plusnet internet to fibre on 23/2. My e-mail confirmation told me this would go live on 2nd March. I didn't receive my router until 4th March and I set up that day (had to log out of setup account but got there in the end!).
It's been on for almost 2 days now and we've not broken 3mb yet (order says 30mb is expected peak minimum)/ 3mb is about what we were getting before (i.e. we can stream on one device at a time).
I've read a few other threads that imply;
a) there may be a 'switch on' date - if so is there a way of finding this out?
b) there are things to do at home (with master sockets etc.) which obviously are pointless if not yet switched on!