My ex-husband recently passed. He was collecting SSD. I applied for survivor benefits for my minor son. While at the local social security office the person helping me advised that my ex did not notify social security that he had minor children back when he applied for SSD, no the children are not entitled to back benefits. Is there any way to appeal this? He had 3 minor child when he initially applied for SSD approximately 4 years ago. Also, child support was being taken from his SSD benefit so how could they not have known? Thanks in advance.