Credit application email is sent to the branch of your bank for an extension in your credit limit. The application is sent to the only branch that holds your bank account. The purpose of this email is to request for an increase in your monthly or annual credit limit.
Here, you should have the email address of the branch manager or any other senior official who would forward your request.
In the first paragraph of the email, you must clearly mention that you would like an extension in your credit limit. Here, you should also mention your bank account number and the branch code for verification.
In the second paragraph, you should mention your current credit limit, stating your annual income. In order to convince the bank authorities, you can attach a copy of your credit history or ask them to verify that, stating that you have never been late in paying off.
In the third paragraph of the email, you should tell them that you would be thankful for the extension, stating the reason for your demand.