You can renew your domain in “Domains” section by clicking the “Renew” button next to the selected domain. After that you will be redirected to the payment form.
It is important to renew your domain before the expiration date, otherwise you have to pay almost twice more to renew it.
You can find an expiration date of your domain in “Domains” section in the control panel right after the domain name.
You will get three email reminders in two last weeks before the expiration date and one SMS reminder the day before this date.