Le Bluetooth est-il gratuit ?

Bluetooth is not used to connect but to transfer files!
It is not paid.

Hello, there might be something else that has taken your credit, even though it's very unlikely, it is not impossible that someone has used software that allows them to control your phone without your knowledge (it can connect to the internet, make calls, send SMS/MMS, steal your contacts, gather information about your phone, steal the multimedia content on your phone), contrary to what one might think, this kind of software can be found very easily via a simple Google search (and on top of that, it's free!). This remains a supposition but I don't see any other possibility!

Goodbye and see you soon!
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Trevör A.

it doesn't serve to connect and it doesn't use credit!

ok, well he took my credit.

It’s impossible for Bluetooth to use up your credit!

But does it use up credit because I lose some every time I use it?

and well, yes