First things first (!) :
Make sure you have completed the install process:
If you are using Themes 1.0 - click Enable
If you are using Themes 2.0 - Follow this guide:
Then - follow these steps to test your wholesale offer:
(1) Copy the offer tag (Important: the tag is case sensitive, copy and paste the exact tag)
(2) Open your Shopify Admin > customers > open the customer profile you would like to test:
(!) make sure to choose a profile you can log into on your end
(3) Scroll down to the tags section, add the offer tag:
(4) Save your changes:
(5) Open the storefront > go to the account login section:
Don't have a sign up / login page?
Follow these steps: https://help.shopify.com/en/manual/customers/customer-accounts
(6) Login to the account you used in step (2).
(7) See the Wholesale Bear widget and click it:
(8) Add products to your wholesale cart and checkout: