Sahara Group Recruitment Test

Friends,
I got an email from www.Niblox.com informing me I have been invited a test slated to hold today 29th Dec. 2012. This is not the first time I will be receiving invitations from this website. But each time I proceeded to see details, it required me to input an access code which am to purchase wit N1500.
Guys what do you think about this?

i smell sth fishy

don't mind dem, they ar thieves n scammers, times without number, sending me different invitation letters frm diffe companies, to purchase their access code, scammmmmmmm, inblox

they are thieves oleeeeeeeeeeeeeeeeeeeeee ignore them

scammmmmmeeeeeer