KIS license renewal

[Alkermes]

I have been using Kaspersky products for many years.
My KIS license expires in a few days and I want to renew it. Click on the link and it takes me to the page where the price is 69.95 euros for a license for 3 devices for 1 year (I always buy them for 2 years).
There is no option to renew for 2 years.

But if I access that same page and want to buy a new license for KIS, 3 devices for 1 year, the price is 29.99 euros.

Could you tell me why there is this difference and why it is more expensive to renew the license than to buy a new license?