Account not meriting credit or PIN in refined neighbourhood's banks (5,6)

'account not meriting credit' is the definition.
I know nothing about this answer so I can't judge whether this works.

'pin in refined neighbourhood's banks' is the wordplay.
I cannot quite understand how this works, but
'pin' could be 'leg' (pins can informally mean legs) and 'leg' is located in the answer.
'refined' could be 'urbane' (synonyms) and 'urbane' is found within the leftover letters.
This may be the basis of the clue (or it may be nonsense).

'or' acts as a link.

Can you help me to learn more?