Why isn't my new font uploading in Assets?

Hi all,

please help, we purchased a new font “Segment” as we want to change the current Helvetica font on the website. The webfonts have been uploaded as new assets and I tried to add it as well on the theme assets. Although no changes is happening. Can you please help to understand where is the mistake?

My URL is publicserv-ce.myshopify.com

Thankyou