i want to know the address of the bank /branch...for sort code 20 10 03 on cheque its written big pham branch but this is not correct so let me know the correct address of branch
It is correct - except it is probably Bispham, not Bigpham.
It's a suburb of Blackpool. Don't know the street address - Barclays run this branch as with just about every other branch from a processing centre in Leicester. LE87 2BB is the postcode.