Gas pre-pay meter

[RizL4]

Today when I put more credit in a "low battery" message and then went to battery failed
My question is, How do I get the meter to bits to change the battery and does anyone know what type of battery they use

 

[RizL4]

Also when i moved into the flat on july 14th it had 6 pounds of debt on the meter. And i just put money on the gas meter today 15 pounds of it but it only gave me 4.50 and said 8 pounds owe then the battery went
I called them today to ask for the money back they said call back in 2 weeks time!!! so they can see what payments you paid when you moved in

had no hot water for awhile now

 

[RizL4]

Shouldn't be a problem getting it back they should see what i paid on the system i used the same key that was in the flat when i moved in. They sent me a new gas card tho
yeah it used the emergency credit had -6 quid that i paid off and must have had bit more becuase i put 15 pounds on the gas card and only got 4.50 worth

I put my name on the account on the day i moved in