The first thing that causes dissatisfaction is the customer support. It's really hard to find such incompetent employees who can't read questions properly and provide answers. It feels like a perfect analogy with sloths. There are no questions for managers of good quality. It's clear that different channels receive different percentages, which can vary from 5 to 15 at the start. However, there are many hidden nuances in the service, so pay close attention to the percentages.
