User Guidelines

Follow these steps to make sure your product reaches the buyer safely:

• Use strong boxes or mailers that fit the item well.
• Add enough cushioning (bubble wrap, foam, etc.).
• Seal the package properly with good-quality tape.
• Don’t use damaged boxes, loose wrapping, or decorative outer packaging.
• Write the shipping and return address clearly on the parcel.
• Mark “FRAGILE” on packages containing delicate items.

To keep the marketplace curated and trustworthy:

• List only genuine items that meet COS’s quality standards.
• Upload at least two clear, original photos.
• Describe items honestly and in detail.
• Don’t use images taken from the internet.
• Submit listings only through your verified account.

• Items priced above INR 20,000 qualify for free authentication.
• Authentication is done through Legit Grails, CheckCheck, or Authentication First.
• If authentication fails:
  • The buyer receives a full refund.
  • The seller pays the return cost and may face account suspension.
• Fingerprinting technology for unique item tracking will be introduced soon.

• Ship within 5 calendar days of order confirmation.
• Use only the prepaid shipping label provided by COS (if applicable).
• Track the shipment and keep the buyer updated.
• Check the delivery address carefully before dispatch.

1. Create an Account: Complete your seller profile with valid ID and social media links.
2. List Your Items: Add at leastmt-20 2 original photos and an accurate description. No internet images.
3. AI Pre-Check: Images are screened for authenticity before going live.
4. Approval: Admin reviews the listing. Once approved, it appears in the catalogue.
5. Shipping: After the item sells, ship within 5 days using COS-approved labels.
6. Payout: After buyer confirmation or 3 days post-delivery, funds move to your COS Wallet.

1. Create an Account and complete your profile.
2. Browse & Filter using categories, search, and recommendations.
3. Buy: Select the item, shipping method, and protection options.
4. Authentication Add-On: Choose third-party authentication for eligible items.
5. Payment: Pay using UPI, card, or COS Wallet.
6. Delivery: Track your order.
7. Review: Confirm delivery and leave a review within 3 days.
8. Buyer Protection: You get a full refund for fake, damaged, or misrepresented items.

• Set up your COS Wallet before your first payout.
• Earnings transfer to your wallet after buyer confirmation.
• You can withdraw to your bank account in 3–4 working days.

• Review item details and photos before purchasing.
• Don’t share personal information outside the platform.
• Report issues within 3 days using the “I have an issue” option.

• Keep item descriptions accurate.
• List only authentic and sellable products.
• Don’t re-list the same item repeatedly to gain visibility.

• Buyers must leave a review within 3 days of delivery.
• If no review is submitted, a default 5-star review is added.
• Seller visibility depends on review quality and consistency.

• Contact COS support within the required timeframe for mediation.
• Provide all evidence requested during the investigation.
• COS’s decision on authentication and refunds is final.

• Listing fake, stolen, or unsafe items.
• Misusing the wallet, promotions, or seller tools.
• Fraud, harassment, or any illegal conduct.

• Allowed only if the item is misrepresented or fails authentication.
• Shipping fees and platform charges are non-refundable.