Tarragona is under controlled airspace, so you probably appeared on the local Aeroscope as there's an airport nearby. The ways of being busted are basically this:
You were naive enough to put your operator ID on the Fly App, so the drone was...
First:
1. Are you sure you received that from the Spanish Government and not some sort of scam?
2. 250,000 Euros!! WHAT DID YOU DO?!!!! Fly without insurance?, Commercial without permit? attept to overthrow the Government?!
3. Do you plan on...