RUDE, Exremely Rude

They have some how gotten my number, they have called constantly for the last 2 days.  Today when they first called I asked them to call back later because I was at a party, (it IS graduation season), they asked what time to call back, I said I don't know 3 hours.  I was trying to be polite.  After the three hours they started calling back again, it was getting annoying so I started answering and hanging up on them.  They proceeded to call three more times in a row and when I didn't answer they left three different messages, on the second message the Irish man proceeded to call me a B*tch, a scum bag, told me I was wasting HIS time, the told me to Suck his D*ck, etc.  I called the number given to have my number removed and was told no one was available to take my call.  I am blocking this number from my phone and WILL find a way to file a complaint against the company. The number they are calling from is 866-269-1747.