The most obese sellers sit and order regular delivery as cargo in order to save as much as possible on delivery and also make unhappy faces for refusing them according to the rules of the Yandex delivery service. Where it is written in black and white in the client's order, regular delivery is calculated for cargoes of no more than 20 kg and dimensions of no more than 50x25x25. And on the advice to use small or medium cargo delivery, they begin to obscene and threaten to lower the driver's rating in response. I'll open a little secret for everyone, no one at Yandex cares about their rating to scare so much. The main thing is to earn money, and at the same time behave adequately. This is the only way almost all drivers work.