I want to create a "Join now" button on the right side on my header next to the search and catalog bar. In the color orange with 100% blur effect with shadow. And on mobile its dropdown so how can It be there as well. Can someone help me? Thank you!

I was ALSO charged with a 105$ subscription while I had signed up for the 1 dollar for 3 months for shopify. This is ridiculous. No way to call and contact shopify, or anything!! Help Me ASAP.