Prob. with the law

I was filmed in Berlin on the city highway by a fat Mercedes. After a little argument with my girlfriend I was a little faster on the way. The Mercedes followed me constantly penetrant. He followed me strictly with every lane change. That went totally on me cookie. Now in the report I are attached to 4 speeds and a right overtaking. I also could not comment on it. Costs : 560 Euro and 3month driving ban. Now a question: is there somewhere free legal assistance or help (have no legal protection) And I saw on the TV times a report, there you wanted to attach someone also several driving violations on a stretch. – It was said on the TV that this is not right because you can only be punished for one and not for all together. They have all violations added up …. Has someone experienced or a helpful tip?