RCS CARD, MAKRO, BUILDERS REFUSE TO EXPLAIN WHY ???!!!!!

THESE COMPANIES ARE TELLING ME MY CREDIT PROFILE IS DECLINED FOR A CREDIT APPLICATION. MY PROFILE IS IMPECCABLE ! IM LIVID ! IM OUTRAGED ! THIS IS ABSURD ! I NEED AN EXPLANATION NOW ! STOP REFUSING TO HELP ME ! THIS IS UTTER NONSENSE !!!!!