TO STOP AUTOMATIC PAYMENT for Internet Security

Hi,
how can I stop automatic payment for license of Internet Security? I don’t find where I can do this in my avast account
Thanks in advance

Please (re)search before posting.
This has been explained many time already.

https://www.avast.com/faq.php?article=AVKB126

Sales: Orders and Renewals - FAQs > https://www.avast.com/faq.php?article=AVKB24#artTitle

avast support and FAQ > search and find > https://support.avast.com/support/home

contact avast > https://support.avast.com/support/tickets/new

Thanks
I have seen in past your link and I have tried the alternative mode but in my interface I don’t see (in point two) the text “your license”… and so I don’t know how can i do

Use the third option listed:
contact avast > https://support.avast.com/support/tickets/new

It is not in the UI of your avast account, but on the website of the payment processor where you enabled/disable the auto-renewal.