HAVE APPLE ID TRY TO REEDEM PURCHASES BUT SAYS MY ID IS NOT SET UP IN STORE WHY

HELLO ALL I HAVE CREATED AN APPLEID TO PURCHASE AN UPGRADE BOUGHT AND PAYED FOR SITE SAYS ITS THERE I GO TO APPS THROUGH ITUNE TO REDEEM .IT TELLS ME THAT MY ID IS NOT SET UP IN STORE . SENDS ME TO A NEW REGISTRATION PAGE WHEN I PUT MY IDIN IT SAYS ALREADY BEING USED. VERY FRUSTRATING AND CONFUING. ALSO SAFARI WONT CONNECT SAYS NOT SECUREAND EXSTENSIONS NOT THERE . DOES THIS MATTER THANKS.