I need Cashfree PG integrated into my wordpress site, www.trendzB2B.com, stall-booking page for exhibitors and a ticket-purchase page for visitors. Each flow must complete the payment through Cashfree and immediately issue the correct document: • Stall-booking payments trigger a fully compliant GST tax invoice. • Ticket purchases trigger a standard receipt that still carries our GST details for audit purposes. The PDFs should be generated on the fly, mailed to the payer, and stored in the admin panel for download. GST numbering, HSN/SAC codes, CGST/SGST breakup, and our logo/promo footer all need to be handled automatically so the documents are ready for quarterly returns.