They damaged 2 of my gas cylinders when I went for a refill

They damaged 2 of my gas cylinders when I went for a refill. Both cylinders were damaged on different days. They wanted me to buy their cylinders instead and therefore damaged mine and **** that they are faulty. I ended up buying new ones to replace the damaged ones. The reason I don't believe their report is one cylinder was brand new and I had bought it the same day from a different supplier. My other gas cylinder was still fairly new and I had been using it almost on a daily basis, so I took it to them for refill while it was working just fine. I am convinced the motive behind the lie was to up their sales. Such an awful experience. I never went back to them