Hi Tomas,
First of all, we are unable to understand your language.
2nd, it will not work if you import the rates in CSV format from an another plugin or something else. This is because, the VOIP Pricing Calculator Plugin has own rates format and it will not support the rate format if you import the rates in CSV format from an another plugin or something else.
In this issue, you need to add rates manually.
Thanks for your understanding.
Best Regards,
ThemeLooks Support Team