Funds can only be transferred from your ISA to a current or instant access passbook account on the Internet Bank. This can be done via the standard transfer process. Your transfer will take place immediately and your account updated to show the new balance.
You can make a cheque withdrawal at any Nationwide branch.
You can replace any withdrawn cash ISA savings (in line with product requirements) within the same tax year to avoid impacting your annual ISA allowance. Replacement money has to be paid into your ISA in the same tax year to avoid impacting your annual ISA allowance.
To transfer your funds to another Nationwide ISA product, you will need to visit a Nationwide branch. You can transfer to an online Nationwide ISA via the Internet Bank.
To transfer your funds to another ISA provider, you will need to contact that provider who will arrange the transfer for you.