Re: Oh dear.. now wat do i do
If the job is based upon that certification and that is the sole reason they called you in for the interview, I say just simply don't go to the interview.If you call and tell them you lied about the certification, it'll make you look bad.If you go to the interview and tell them you don't have the certification,it'll make you look even worse.Just call and decline going to the interview or make up some other excuse.
Sorry buddy, there's no resolution that's gonna get you the job unless you make 10 other lies which is simply unethical.