Card Member Services This company calls 2-3 times per week saying they can help lower credit card interest Georgia

I have been receiving calls from this company for several months about 2-3 time per week sometimes more.  I have blocked the number and they just call back on another number.  I have wasted my time to press one and tell them its illegal to robo call my cell phone, that I am on a do not call list.  Today I was told I don't care what you are on we will just keep calling.  I am tracking all of the calls I receive from them and plan on opening a class action lawsuit to stop these people from harassing people and illegally calling them.