Oh no, sorry I meant a big jump in points for moving from 6.5 to 7. But from the person I spoke to at the British Council, you can be hopeful to increase your by 0.5 or 1 point if you really think you did better. I went ahead with it because I felt confident, and if I'm right I'll get the full refund. If I'm wrong, I'll not have any regrets not trying.
Very big Jump I must say. You are safe already, you are only remarking for bragging rights ...lol
I'm quite confident, although I am having some doubts after seeing some reviews. But then no harm in trying