Who called from 3055037702

We keep getting this call in Spanish. We told them to never call back and they keep calling back 3 times a day.

I just received a LONG message from this number and so now I have wasted some of my minutes.  Who is this and how did they get my cell phone number?

Missed call on this number

I also received a call in Spanish, which wasted minutes on my cell phone!  Not knowing Spanish, who knows what he said!  How irritating!