Extra 40/2 to Extra 80/20 - when does speed increase happen?

[#1]

Hello
Just a quick one - does the speed increase (Fibre Extra 40/2 to Fibre Extra 80/20) happen soonish after placing the upgrade or does that only kick in (along with the upgraded usage limit) at the next billing date?
The wording seems to suggest the speed bit happens fairly soon after the order is placed?
Not that I'm impatient for yet more speed, or course 
Thanks,
Ashley

[#2]

Basically Yes,
PN submit the 'regrade' order (40/2 --> 80/20) as soon as you click order, which can take a few days to take affect.
The product change itself (Old Extra Fibre --> New Extra Fibre) takes place on the next billing date.
HTH,
Alex

[#3]

Thank you
I shall look forward to it. Order was submitted a couple of days ago so it shouldn't be too long now for the speed change.
Ashley

[#4]

Last time I tried to upgrade to 80/20 a had no connection for 3 weeks (yeah, nice one Openreach.!..).
Hopefully it goes smoother this time... I applied yesterday.
The download rate is fine, I just find the 2mb upload a pain. Fingers crossed!!!