Usage Reset!

[#1]

Hi,
I'm Currently on the 60GB usage allowance bundle and I'm having unlimited Fibre installed tomorrow.
Now my question is this, Will my usage be reset tomorrow to be on the unlimited package or will I have to wait until the end of the billing period, which for me will be the 20th of August.?
Problem is I've used something like 58GB at the time of writing this post and If I have to wait until the 20th I'm going to go well and truly over my 60GB allowance and incur more charges.

Thanks in Advance, Rdavison1 

[#2]

Update:  I've actually used 61GB so theres the first £5 added to my bill. Really hoping that It will be reset tomorrow 

[#3]

Hi there,
The appointment is still showing due for tomorrow morning and I'm not seeing any delays. The account change should be done once the engineer visit has completed, if it's not for some reason please let us know.

[#4]

Hi,
Thanks Matt, really appreciate the fast reply. I'm glad to hear it'll be reset as no doubt i'll be doing a lot of downloading once the new package has been installed 
Regards, Rdavison1