Step 1: Go to OTC Page and Click Gift Card Trade
Step 2: Create an offer for selling BTC
Step 3: Select type、payment method、label
Step 4: Set your rate and trade limit
Step 5：Set your trade instructions
Step 6：Your offer will be shown in the Gift Card Trade Market
Step 7：Manage your offer->My Offers
Video: How to create a Fiat Offer on CoinCola?