Cannot open sentry v260 safe

SOURCE: sentry codes v260

You should have received two skeleton keys when you bought the safe. They will open the safe without the key AND without the code. If you don't have it, the only solution is to get help from Sentry. By following the instructions below, they will send you a skeleton key for your safe. First, find your safe’s Serial Number. The Serial Number is printed on the small label on the right side of safe (outside). Send this, a notarized letter(last name must be different) stating you are the safe’s owner, and a check or money order or $8.00 (U.S. funds) to:
Sentry Group Dept. 200
882 Linden Ave
Rochester, NY 14625-2784 If using a credit card (Visa/MasterCard only), call 1-800-828-1438.

SOURCE: The Sentry V260 safe will not open. Replace batteries?

Locksmiths agree on how to install sentry safe batteries
slide open the battery cover located just below the keypad.
Insert a paper clip or pen point into the small hole in the cover. Push in while sliding cover to the right. Disconnect and remove the battery holder. Insert the 4-batteries as indicated.
reconnect the connector and put back the battery holder. Slide the cover back in place. How do I insert the batteries on my advanced electronic lock safe? On the newer model Fireproof Sentry Safes my locksmith recommended me To install batteries,
turn the electronic lock case to the right and remove. Insert four new batteries as indicated, replace the electronic lock case and turn to the left to reassemble.