I turned to the master to change the chain, stars and coins for me. We agreed on the price and terms, and on a piece of paper the master wrote out the cost of spare parts and works for me. While picking up the bike, I noticed a lot of defects in work and spare parts. The guys said that this is how it should be and they won't do anything else. After the scandal they caused, they returned some of the money for the work. But they flatly refused to return the money for low-quality spare parts or to lure them away. I even had to call the police.