Sold Octopus
If you have a Sold Octopus that does not have brackets on the last digit of the card number, or you hear a "Dood~Dood Dood" sound when tapping the Octopus on a reader, please replace it at any Octopus Service Point located at designated MTR stations or shopping malls, and transfer the Octopus services / offers to another Octopus.