What is a Proof of Funds Letter?

What is a Proof of Funds Letter?
Proof of Funds Sample Letter
(Bank's Letter Head Stationary)
Date
Bank's Name
Bank's Address
Bank's City, State & Zip Code
To Whom It May Concern;
This letter is to certify that (Principle Buyer's Name, Owner / Partner of Principle Company Name) has been banking with us since (Year).
(Principle Buyer's Name) has several related accounts with our bank under his control (or power of attorney related to the accounts) with current cash deposits of $________________USD.
(Another example: Principle Buyer's Name has a line of credit the amount of $_________USD.)
(Principle Buyer's Name and Principle Company Name) are both very valuable customers of our Bank. Should you have any questions, please feel free to contact the undersigned at (Bank's contact phone number.)
Sincerely,
Banker's Name
Banker's Title
Banker's Phone number