authorized no-fly zone with credit card

[The Hawk]

Hello,
I already said I fly with a drone of 9 kg. recognized by Italian FAA so I can get permission to fly in areas around airports.
With my new Phantom 4 (This phantom is not yet authorized for aerial work) but I wanted tried to fly into a no-fly zone just to see if I could activate it.
This has been successful but the Dji Go App ask me my telephone number , and my credit card number. I did this, and I could fly. The flight was only a test I flew less than a minute to a height of 15 mt. 3.7 miles from the airport.
The question is: what it means send to the Dji My credit card data?
Ta!

 

[msinger]

Unlocking an Authorization Zone requires a DJI user account verified with a credit card, debit card or mobile phone number. DJI does not collect nor store this information, which is verified by a third party service. Verification is free. A verified account is required only if attempting to fly in an Authorization Zone.

See more details here.

 

[DonaldictTrumperbatch]

costs 99$/hour to fly in a non-fly zone

 

[msinger]

costs 99$/hour to fly in a non-fly zone

I guess you're just trying to be funny. To clarify though, there is no cost.