https://itemku.com/tanya-answer/article/cara-trading-growtopia---/115003362891 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 it hasn't been sent, there will be problems such as doing assignments, etc. so please be patient, a maximum of 1-3 hours if the response is slow)Thanks :)