I think my 8 year old son has LD and I do not know what to do!?

He is not reading, writing, spelling or understanding directions. The school had a meeting with me in November to discuss my sons issues. I told them that my son's father has LD and his older brother by another mother also has LD. At no point did the 8 representatives from the school even speak with me about testing or evaluation by the district. I live in Miamisburg Ohio and I read that by law they are required to provide these services at no charge. Each day my son's confidence level is getting worse. Today, I was called by the principal of the school to tell me that my son refused to do work and she only had one secretary in the office and he was asking for help because he did not know what he was reading and he was told just do it, I do not have time for this. The principal gave my son three time outs at recess for the two days for this. When I spoke to my son, he was at his intervention reading specialist and was not in class for the assignment so the teacher told him to find the answers and take the test. Well, he failed it again. I am so frustrated and my sons behavior is getting worse, he is shutting down and I do not know how to handle this. Can anyone give me advise? I have been working with him at home and he is not progressing and now he is acting out.