247advances harrassing phone calls

I'm currently working with Langhorne debt solutions and VERY happy with them! However last week before they were able to begin telling the PDL companies to stop calling me 247advances probably gave me one of the most embarrassing and uncomfortable situations of my life. I was at work and they found out I was in the building and I kept hanging up on them and they kept calling back. They blew up every line of the work phone lines...they did this for about 10 minutes but it seemed like hours. I can't believe how persistant and rude these people are. They were threatening my boss and coworkers. Screaming at whoever answered the phone. I hope nobody else out there has to expereience this from them!!