Letter confirming signature verification to customer for accessing locker

From,
Mrs Black,
Bank Manager,
ICUC Bank,
San Diego

To,
Mr Brown,
C-14, Whistling Winds Apartments,
San Diego

Dear Mr Brown,
I, Mrs Black, bank manager of ICUC Bank for San Diego Branch no 17, am writing this letter to make you informed about the fact that the signature surfaced by you for seeking the belongings in locker no E23CS has been authorized by the bank. I, on behalf of ICUC Bank, submit apologies for denying you access to the locker of your mother. However, the formalities have been entirely to assure the safety of the belongings in the locker and we are hopeful that you would understand the professional barriers which caused the time delay for you.
Also, there are certain dates which have been designated by the bank authorities for you to get access to the locker in order to avoid any hindrance from other bank staff, considering the fact that you have obtained the authorization without the consent of the bank staff. Please intimate your preference at the earliest.

Yours faithfully,
Mrs Black