No warning when battery dies; terrible customer service - GunVault MultiVault Deluxe Handgun Safe

Hello,
I have an older version of this safe and I had an incident last night where I needed access to my gun quickly because we heard someone in our backyard. My primary home defense weapon is kept in my GunVault. Upon trying to use my access code it would not open. I had to o find my key and eventually open it. Needless to say this was not acceptable so I contacted their customer service after seeing online other had the same issue. Here is their exact response:

I do apologize for the inconvenience.We' are not why the unit did not indicate the battery was low since this safe is a very hold maybe the cause was an electronic issue.Thank you for choosing Gun Vault. Gerry Lara | Customer Experience Department

After sending them video evidence people have posted about this issue they just ignored me and never responded back . Do not trust this safe nor this company!