OK, I asked Tom Tomtom (formerly Tom Hamburg) on the TuneECU Facebook site about the maps issue. This is his reply.
“The retailers receive the following maps from the manufacturer. Not all maps are in our databases.
Rocket 3 GT
31012 Standard exhaust. All markets unless a market specific calibration exists. Fuel up to E25. Minimum 95 RON (89 RON/MON) fuel.
31013 Standard exhaust. North America and Canada markets. Fuel up to E25. Minimum 91 RON (87RON/MON) fuel.
31015 Standard exhaust. Thailand market. Fuel up to E25. Minimum 91 RON (87 RON/MON) fuel.
31016 Standard exhaust. Chinese market. Fuel up to E25. Minimum 91 RON (87 RON/MON) fuel.
31017 Standard exhaust. Argentina, Indonesia and South Africa markets. Fuel up to E25. Minimum 95 RON (89 RON/MON) fuel.
Rocket 3 R
31018 Standard exhaust. All markets unless a market specific calibration exists. Fuel up to E25. Minimum 95 RON (89 RON/MON) fuel.
31019 Standard exhaust. North America and Canada markets. Fuel up to E25. Minimum 91 RON (87RON/MON) fuel.
31020 Standard exhaust. Brazilian market. Fuel up to E25. Minimum 95 RON (89 RON/MON) fuel.
31021 Standard exhaust. Thailand market. Fuel up to E25. Minimum 91 RON (87 RON/MON) fuel.
31022 Standard exhaust. Chinese market. Fuel up to E25. Minimum 95 RON (89 RON/MON) fuel.
31023 Standard exhaust. Argentina, Indonesia and South Africa markets. Fuel up to E25. Minimum 95 RON (89 RON/MON) fuel.
Rocket 3 TFC
31024 Standard exhaust. All markets unless a market specific calibration exists. Fuel up to E25. Minimum 95 RON (89 RON/MON) fuel.
31025 Standard exhaust. North America and Canada markets. Fuel up to E25. Minimum 91 RON (87RON/MON) fuel.
31027 Standard exhaust. Thailand market. Fuel up to E25. Minimum 91 RON (87 RON/MON) fuel.
31029 Standard exhaust. Argentina, Indonesia and South Africa markets. Fuel up to E25. Minimum 91 RON (87 RON/MON) fuel.
From this selection you can see that no special card is intended for the Belgian market. So this is how the card can
"All markets unless a market specific calibration exists" can be used.”