recruiting firms, is Esther bt real, they sent me a mail.

First of all, I must comment on the good job u guys are doing, pls keep it up. Kudos to u all.
Does anyone know how genuine these recruiting firms are? I applied for a post and sent it to the email attached to the vacancy,it's actually in guardian news paper, and i was sent a mail to come for an interview on 21st Thursday, at Estherbt No.2. Martins Street. i really do not know how genuine they are,what amassed me about the whole thing is dat i also applied for my room mate and immediately got a message from them dat she has also been short listed.
i have a doubt about them [email protected]
Please did any1 apply to them? ???
Pls i need to know cos the interview is in lagos and an presently in Enugu. i need to be sure b4 going to lag. Thanks all.