I also got a lot miss call from this no.

even i pick up the call , they hand up the phone and i call back .....line is busy

keep disturbing for few days

I'm too getting a call from this number, but there are network busy when i'm call back.

i got a misscall  from this number. I thought it might be from someone who wants to inform something. So i try to call back but i just couldn't reach it.

When i google the number, i am surprised that there are many person who suspicious about this number.

Received few misscalls from this number, never bother to pick up

A girl introduced herself as Mimi, said she calls on behalf of Citibank to offer me an insurance deal which sounded too good to be true. It's FOC with lots of benefits, and I was offered the deal just because I was lucky. She knows my name, and knows I'm a card holder.

Just out of curiousity, I let her explain for like 10 minutes. Her tone is high pitched, and it's like she's reading a script. Then my boss came by, I told her to call me back in 1 hour. And she did. She continued explaining again for another 12 minutes, and that's when I found this page. Then when she asked me to give information to submit my registration, I declined. I think it's a scam to get my banking info.

They are just an outsourced company, not directly link to any bank.
Those bank/institutions are their customers. They help to bring value added services to card holders, and I believe, with certain commitment monthly or yearly.