Just asked it because if not one of them converted, you're doing something wrong.
To clear things up, let's assume I'm talking about the same company.
Having the same IP filling two different offers can bring you trouble.
Having the same email filling two different offers can bring you trouble.
Having the same email with different IPs filling two diferent offers will most certainly bring you trouble.
Much more if you're having such few leads. If you distributed 20 per 3 companies, you filled 7 mail submits.
They get suspicious when you bring such few traffic to their offers. It would be kinda ok, if you were testing some ppc tactics with a paid trial, but email submits?
They're surelly investingating your case.