They always call late at night when I have my phone off. I know it is not important cause they never leave a message and they only call my cell #.

Same for me -- no message. Does anyone know who these folks are?

tried calling back -but phone is not receiving voice mail nor has a standard greeting

they keep bugging and its annoying me...

BEWARE! I received a call from this "Richmond, BC" number today from a woman with Philipino sounding accent. I was feeling a little playful, a little curious and very frivolous with my time (my gift to you)... and decided to listen to the purpose of their call. She quickly passed me to her male "supervisor" after briefly explaining that I was eligible for a FREE trip being a valued member of EITHER Visa or Mastercard (he didn't know which... MOST EVERYONE has one of the other!). After explaining  that I was elig for 3 seperate vacations and gave me lots of details! (Cancun Resort 80 % off, Orlando Fl (disney), and a Cruise for 4 people! which is valid for 2.5 years but is extendable!) He said their company name is  PREMIER CANCUN VACATIONS.  He then passed me on to a third person, his "director" who would give me "confirmations numbers" blah blah. After confirming my address ( which was my old one from two years ago) and my last name (he didn't have my first name) and informs me I can get all this which is valued at $6,000 for ONLY.... $598 USD!Of course this is the moment I was waiting for... he wants me to give him my CCARD INFO and then he will SEND me the travel package within 10 business days! He gave me a "call back # of 1 +1 888-804-7437, called himself Chris Lopes "director" in case this was not received; gave their address as: 404 North Tower, Cooney Road,  Richmond BC V6X 3M1;he gave a website address www.marketing4sunsetgroup.com (which gives not evidence of association to the above info). I know!... this is 20 minutes of my life i will never get back.

but i tell her frankly is these a scam and she said this is only to verify my credit information.
it incoureging person to took with her, but im afraid what to the next that i give her already my credit number and my security code. what would i do in these kind of case. can i call to the crdit card holinet to stop accepting transaction about my cridet card.