Unhappy with Coricraft's RCS card division

I want to purchase a couch from Coricraft, I'm putting down a 80% deposit, the balance I want to pay over a 6 month's account. I app**** for the RCS card and they have declined my application without any explanation. My credit score is perfect, the financials I gave them are all in order, but still they decline me and cant tell me why. I am a very unhappy client.