How to lower the tariff plan?

I now have a tariff plan for 10 PC. But I don’t need that much, I want 5 PC. How to choose on 5 PC, it disappeared in my account.
I have 3 free days left, I don’t want to buy for 10 pc.

Hi @Sairus please email the team who will be able to help downgrade your account. The email address is: