Energy Event credits

Apparnetly they will credit the free football juice by tomorrow. Anyone had theirs yet?

I've just had a bill for £70 come out (was already in credit) - which is the highest i've ever paid but I am starting to get concerned about them not crediting it.

With 2 16 hours on a Sunday coming up, part of me wants to not use it for fear the next bill will be £100+ and they won't credit it. (I understand they don't do it until the end of the month anyway - not good for us who have a bill in the middle!)

How DOES it work!?