Just upgraded phone package - will it be instant?

[#1]

Hi,
I was only Plusnet Line Only with Fibre unlimited broadband. I have just upgraded to the Weekend & Evening call package. Will this change be instant, or do I have to wait for an activation date as such?
I was also given a £9.99 discount for 6 months when signing up for the broadband (that was the offer at the time), would I be correct in assuming this discount will still apply?

[#2]

Hi Xreyuk,
The phone package upgrade will take affect from your next billing date.
The £9.99 discounts will remain on your account as they are applied against the broadband product. As this is not changing they will stay
Dan

[#3]

Cheers Dan.

[#4]

I waited a month to add mine on. You can add and take or whatever you want to do every 30 days