Recommendation Letter Format for Bank Account Opening. Subject: New Bank Account Opening Request Letter. Dear Sir/Madam,. It is certified that . When you are applying for opening of a new bank account, your banker may insist on for one or more "introductory reference" from either an existing account. twtcrental.com › /01/05 › sample-reference-letter-for-bank-account-o. Fillable letters would ask for certain information, which is easy to find. Further, please note that we also hold a current account with your reference letter format-for bank account at the same branch. A bank reference letter would be needed by a person on regular basis depending on the needs of a business or something similar. There should be no spelling or grammar mistakes and the content should be perfect as per the need of the person. This is for your kind reference. A bank reference should also confirm that banking relationship has been acceptable, without any defaults from your part.