Hi, dear users Well, I'm writing a billing panel for my hosting, but today I've got a problem. I don't know how to make function that change user's package for e.g. Should I first connect or set with Cpanel using php or what, I don't know. I heard sth about API, besides I downloaded some files and tried to use it, but nothing happened, unfortunately Can you help me, please? P.S.: I'm sorry if some grammar mistakes, I'm not native speaker.