they didn't deliver my study material .

I registered at damelin correspondence college for comptia+networking cause, they tell me they don't have study material i must wait,since i registered on october 2015 untill today they did'nt receive study material from supplier no manager from damelin who is willing to help me or to talk to me as per student consulted by the name of yolanda they refuse if she want to transfere the call to them,i paid cash i don't ow them nothin.student number 425878,they keep on promising me an empty promise