Hi, I'm Nathan.Sorry to hear that you're having trouble with this but I'll do my best to help you.
Can you check it over for any other model numbers or markings? Do you see a brand name on it like Sentry, Honeywell, Cannon, etc?
I can help you, but it is never just 5, that was the deposit to post your question, the total is more like 24, which is the amount that would have been displayed and agreed to on the payment page. The phone call offers you see are automated and optional, you may ignore those, and then there wouldn't be other charges beyond the 24.
But, that is still not a valid model, do you see anything else? It is usually marked on the area around the keypad/combo dial, or on a metal plate near the hinge, or inside by the battery cover
You have already paid the full amount to the site, per the agreed upon terms.
If you wish to continue, under the fees you have already paid, please let me know the complete model number of the safe.
If you want to cancel you may do that from the help page.