https://itemku.com/tanya-answer/article/cara-trading-growtopia---/115003362891 In line with the queueThe following are the procedures for purchasing World Lock:1. MANDATORY Include the World name and In-Game Name / GrowID in the Transaction Information column.2. The In-Game Name / GrowID listed must be the owner of the World listed.3. The world listed must have a Donation Box.4. Set the listed World level to 1, to make it easier for us to send5. World Lock will be sent within 1 - 5 minutes after we receive the order, and if the transaction information is complete.If there is something you want to say about your order, fill in the "Notes to Seller" column.Because the process only takes 1 minute, so write down the world and owner's name correctly, the owner's name and world are in the Grow ID & World Order is Absolute And Means No More Mistakes