Refer and earn still can't login

Still can't get into system to claim my refer and earn please help clear cache delete browser history nothing works

NEATS123 Sorry to hear that you're having issues getting into your Refer and Earn account. Have you previously been able to access this account or is this the first time?

If I could have logged in I would have claimed my reward, so no not been able to get in

How can I get this working or do I hve to make a complaint?