APPLICATION PROCESS NOT WORKING!!

POOR SYSTEMS ARE FAILING ME, I DONT UNDERSTAND WHY THE INSTITUTION SAYS MY APPLICATION FEE WAS NOT RECIEVED AND REJECTING ME WHEN I SUBMITTED EVERYTHING LAST YEAR IN AUGUST. MY PROFILE HAS ALL THE DOCUMENTS AND WAS ONLY PENDING MATRIC RESULT TO MY SUPRISE THE INSTITUTION SAYS I DID NOT SEND POP AND I HAVE PROOF THAT I DID. PLEASE CAN SOMEONE CONTACT ME ***