Fibre slow after move

[#1]

Heya, Fibre was installed today and I am getting download speeds of 0.7mb, similar to my previous adsl connection. Has my profile been updated?
Thank you!
Dan

[#2]

Doesn't sound like it, give me 5 minutes.
Might take longer than 5 minutes.....

[#3]

Should be sorted, although the engineer hasn't yet closed off the order.

[#4]

awesome, thank you.

[#5]

Hey, so I was achieving the fibre speeds advertised, but this evening it seems to have dropped back down to 1Mb?
What gives?