Have this number logged in callblocker which means the call doesn't even connect but still they call 3-4 times a day then nothing for 2 weeks then a flurry of calls at all times of day, morning, midnight.
You should be able to block the number. Go into recent calls and click onto the caller info, scroll down the page and click on Block This Caller. They will never get through to you again!!! :)
Just got a call from this number. I listened to the spiel, and at the end she asked for my credit card details. I refused to give them, because who hands over their cc# to a random person over the phone? I asked her if she would hand her details over to me if I called her, and she said logically it made sense, because this was an awesome deal. Paying USD$498, plus flights, plus cruise fees, plus food? Doesn't sound like an awesome deal to me. The number is now blocked but I kind of wish I had messed with her a bit more before hanging up on her.