Harrassment and Nuisance phone calls

These people call my cell phone at least five times a day from different numbers every day and every single time that I do answer I tell them to take me off their list, that I am not interested and to not call me anymore. And it makes no difference because the next hour, they are calling me again. This company is currently being sued in California for harassment and nuisance calls, and also in a class action lawsuit for the same offenses. The plaintiffs are seeking $500 per violating call for damages, and I hope they win. It's almost impossible to block them because they use different numbers each time. Consumers deserve protection against this type of harassment and American Pro energy has no right to continuously waste people's time.
STOP CALLING PEOPLE. THEY DONT WANT TO TALK TO YOU AND AREN'T INTERESTED. GET A CLUE.