Money Advice Direct
FREEPHONE 0800 074 6918
If your account has a buffer zone, the machine will let you have £10 even if there is only £6 in your account.
The bank will not charge you for going overdrawn up to the buffer-zone limit. If it doesn’t have a buffer zone, you won’t be able to take out £6.
You can take out the exact amount of money you have in your account over the counter either at your bank or building society or at a Post Office® branch.