In order to mint your unique Callsign, you must have SHRAP in your Inventory (Shrapnel Wallet) and that Callsign must meet the requirements and be available to mint from shrapnel.com/callsign
In order to mint your unique Callsign, you must have SHRAP in your Inventory (Shrapnel Wallet) and that Callsign must meet the requirements and be available to mint from shrapnel.com/callsign