Here is a common issue some vendors have with BuySafe:
You’ve signed up for BuySafe and activated the account. The seal has been installed properly, but the BuySafe button is not displaying at checkout.
From your 3dcart Online Store Manager, go to Modules and search for “BuySafe. Click on the BuySafe logo to expand the selection and then click on its “Settings” link.
Copy the code from the Seal Script section and paste it into the store’s Global Left Banner (see Content =>Header and Footer).
If you are copying the seal into a different location this is fine. However, you must still paste the first line of the script into the Global Left Banner for the button to display on the View Cart Page.