The customer communication policy for merchants on the ShopClues platform prohibits direct communication between merchants and buyers regarding pre-sale, orders, payments, shipping, post-sale or returns. Merchants are also not allowed to engage in direct or indirect marketing communication with buyers. ShopClues can intermediate communication for specific product inquiries or issues, but merchants should not communicate directly with buyers. Violations of this policy can result in actions like product listing cancellation, limits on account privileges, account suspension, or loss of top rated merchant status.