I was refused a Schengen visa to Germany.
I used to work at first but along the way I stopped work and went to school; I just finished my national service but still have not graduated yet because of one paper I have to go and write. Due to being in school, I could not save any more in my bank account, and due to that I personally could not issue my bank statement for the trip.
The man inviting me sent all his documents to the local embassy in Germany before, and he was given this paper (Verpflicthungserklärung) which proves when I am there he can sponsor me very well. Also submitted were my proof of my service attestation and my application, and my uncle's bank statement and company certificate. But with all this, I was still denied the visa.
So what must I do now, as my friend is waiting for my arrival?