My Shopify store is fully built; the only piece missing is an automatic percentage-off incentive when customers choose the Bank Transfer manual payment option. I need that discount to apply only to a set of specific collections that I will share with you. Here’s what has to happen: • Create and activate a percentage-based discount that triggers exclusively when “Bank Transfer” is selected at checkout (other manual options such as Cash on Delivery or Cheque should remain unaffected). • Ensure the rule targets the designated collections and does not appear for any other products. • Verify that the discounted price is reflected both in the cart and in the order confirmation email. • Test thoroughly on desktop and mobile so I can switch it live right after your hand-off. You are free to use Shopify’s native discount/checkout settings, Scripts, Functions, or any lightweight app—whichever achieves this cleanly without slowing the site. Once complete, hand me a brief rundown of what was configured so I can replicate or adjust it later.