# FAQ

- [Chatbot Technical FAQ](/faq/chatbot-technical-faq.md)
- [Excluding VAT/GST at Checkout](/faq/how-to-exclude-vat-gst-charge-at-checkout.md): Guide on Excluding VAT/GST Charge at Checkout.
- [VAT/GST Tax Refund](/faq/how-to-exclude-vat-gst-charge-after-checkout-via-tax-refund.md): Guide on Excluding VAT/GST Charge after Checkout via Tax Refund.
- [Applying Promo Codes](/faq/how-to-apply-a-promo-code-at-checkout.md): Step-by-Step Guide to Applying a Promo Code
- [Upgrading Wonderchat Subscription](/faq/upgrading-wonderchat-subscription.md)