In order to use Jilt on a paid plan (see what's offered on the paid plan) you will need to add a payment method to your Jilt account. You can add a payment method via your Jilt admin under Settings > My Account > Billing
If your store is on Shopify, your Jilt charge will be added to your monthly Shopify invoice.
For stores using WooCommerce or Easy Digital Downloads, we accept credit cards (Visa, MasterCard, American Express, and Discover) or PayPal. Credit card payments are processed securely via Stripe.