Same. I'm on boc rent contract for argon, never needed to refill an X within a year. I've had free replacement because of low usage, but still £104 rent a year.Should have just bit the bullet and paid the rent free deposit from the start.... 12 years I had the bottle for from BOC as I got it on the cheap volkzone deal thinking how much cheaper it was than paying the deposit plus first gas fill charge.... Guess how many times I refilled that big BOC Y size bottle... Zero lol... don't even want to add up how much I have gave BOC in rent over then 12 years...