Thank you very much!
No, my provider has unlimited data, but after the first 5GB, I need to send a text message that will give me another free 1GB extra, and if that is also been used, I can send another message to get another 1GB (I can go on forever for free)
They have done this to prevent abuse of the unlimited data.

But I found out that I don't have to wait to use the first 5GB at all. I can send like 50 messages directly, and get 50GB


Now all I need is a .desktop file