Direct URL link to add credits to cart

For example, https://yourproducturl.com/checkout/?add-to-cart=%ID%

Credits are added by visiting the /my-account/ page then clicking the “Buy Now” button next to the credit package you want to purchase.

thanks for replying. i assume then that there’s no way to circumvent that step of user having to go to “My account” to purchase stamps?

As a follow up, you may want to checkout shortcode [buy_credit_url] which we added to 1.0.3.5 of Platinum version. https://woocredits.supportico.us/release-note/platinum-version-1-0-3-5/