The service throws people money for diagnostics.
A small Boshev Bulgarian was taken for repair without any problems and only the next day was given a choice: 10 rubles for diagnostics or 150 for repairs. At the same time, at the time of acceptance, they did not warn about such a repair cost.
In the vortex screwdriver, you just had to change the cartridge for 13 rubles. Again, they were given a choice of either 90 rubles for repairs or 10 for diagnostics.
Just without doing anything, they squeezed out 20 rubles.