i rented an activa s for 1 month. A week later, I said that I was not satisfied with the engine and wanted to change it because the engine was cutting off gas when it was going, there was nothing in the name of braking. When I asked for a change, Mr. Anil, who was in charge, spoke in a reverse style in the style of “are we going to change the engine for everyone”. Later, in the rainy weather, I fell out of the engine because the brake I mentioned didn't hold, and then they changed the engine. There was no problem with the modified engine, but I got into harm's way by not being able to work for a while because I had an accident. Then I used the engine for 300 km and delivered it back before it was time, saying that the starter and protection iron of the engine I had crashed were broken (the protection iron was very, very slightly bent, there was no situation to change) and in return I was asked for 2100 TL. As a courier, I have worked for these people for about 1 month and I have put my life in danger. I DO NOT RECOMMEND advice to courier friends.