How updates works with Tom Tom GO 5200?

angela guzzardi
angela guzzardi Registered Users Posts: 1
New Traveler
edited August 2021 in Map purchase & installation
can sombody please help how updates works with Tom Tom go 5200.
When I bought , it was told me that I had not to buy anymore new cards. But now i wanted to plan a journey to the airport in Keulen and I did not succeed. I bought now a card for Europe while I had already Benelux and Switzerland ,Austria ,Germany. Was this necessary . Is this not dubble?
thank you
I hope my question was clear