They're giving you the wrong information!!!
I called Brovki 1 and Mogilevskoe highway 11-km and asked if I could buy a refilled 27-liter cylinder. And one and the other said yes, come. I arrived, and the same employee I was talking to says that we only have an exchange!
Have fun!!!?
I've never refilled or changed gas cylinders before. It's just that I'm not stupid, I understood what to do, the staff is not sociable, it feels like the guys are working in penal servitude in chains or in a quarry, or Jews in Auschwitz.
The service is just tinny, the tanker was constantly rude, hurried, pointed out what to do, and in fact decided to debit money from the card for three balance instead of two. To my displeasure, he twisted his face and threw the difference in money.