ISA Transfers questions

As i know ISA can be fully transfer from [last year ISA account] to [current year ISA account] and this will consider create new ISA account My questions 1. My last year ISA should make some interest let say basic £20,000+ interest £800 in total £20,800, then ISA transfer normal require transfer all amount to new ISA account, if the new ISA account does not allow withdraw within the year , What will happen with that £800 interest ? 2. If my last year ISA have £20,000 (+£800 interest) then i transfer to new current year ISA account , is that means i already use up all this year ISA limit (assume it remain £20,000 limit)

Hi jingplus,
The maximum you can transfer into the ISA is £20000.
Any surplus cannot be placed in the ISA.
Thank you.