"Thanks for doing this... ------- No problem.
"I wanted to know, how much was given to my mom monthly when my father was disabled and then what lump sum was versed to her (since I was a minor) when he died..------ OK, this will all depend on your FATHER'S work record, as that determines his Primary Insurance Amount "PIA". Once you have that, then you determine the "family maximum". If your father worked enough, he would have had insurance (SS insurance) coverage for not just himself but his dependents. If he didn't, then his coverage purchased would only cover him. Assuming he had enough for dependent coverage, you take the family max (150% to 180% of HIS PIA), subtract out what he was collecting (100%) then take the remainder (50% - 80%) and divide it equally amongst the eligible dependents, including mom if she was eligible as a caretaker. But being remarried, I suspect she may not have been. So, if there was just YOU, you could have your family max amount available, and YOUR amount is up to 50% as a dependent of a living disabled parent. So if your dad got $1000/mo than you'd be eligible for $500/mo. Your mom would likely have been your representative payee, in charge of using that money first for your basic needs, if any, then any extra curriculars (i.e. sports/camp/piano lesssons), if any.... if any is left unused, she has to save it for you. Obviously, usually there is nothing left, the cost of living and raising children being so high. But that is the general rule on how an RP must use the child's share. Now, if your father passed while you were under 18 or 19, then your maximum potential take is 75% of his PIA (it increases), still subject, however, to the family max and prorated amongst all survivors accordingly.
"Also yes, I do want to know how much I got as a beneficiary of his life insurances...------- That would entirely depend on what he decided to buy. You really need to look at that policy or contact that company - it is not public information for all the world to see.
"however, since I was a minor, and I never personally obtained any money, I wonder if that money was given to my mother since she had custody... ----- Possibly, and back then, things were different. Typically, however, a child's life insurance proceeds go into TRUST..... until you are above the age of majority... And remember, as a minor, you'd get those SS survivor benefits as well - although they are typically used to house and feed you.
"So I guess I am at square one, because my problem is that when I ask, they seem to not take me seriously and do not cooperate in looking into where the money went... ------- Who is they? What "they" would even know your personal financial situation and that of your mother? Are you talking about your mother?
"If I understand correctly, I need to write them a letter requesting the information and hoping for the best...Who? The insurance company? Sure, that could be a start. Maybe your mother didn't even KNOW of an insurance policy - that money could still be sitting there....
"I was wondering if there was a law article or something I could join in my letter to take me seriously...Like...according to article bla bla bla...I have a right to this information...since he was my biological father...but if I understand correctly, there is no law saying I am entitled to know what happened to the money that was meant for me as a minor and that I never got? -------- No, what I am saying is that there is no law requiring other people to divulge their files to you on a simple request without other action from you. Think about it, then I could say, hey, I want to know what ever happened to John's insurance policy he had privately with Allstate..... give it to me. They would laugh. But, if you are a "beneficiary" of that contract, you have a right to make that claim. Social security is a little tougher, BUT, since any payments would have your SS number attached to them (as well as your father), if you ask the SSA (and normally any request even I do takes, like 8 letters and 10 months - no joke). With regard to the SSA you can also ask your Congressperson for assistance (and you can go to his site, look for "help with a federal agency" and email him accordingly. But, again, since SS benefits are to be used for your living expenses when growing up, this may be less important because rightfully, there is probably nothing there.....
"Maybe it is a language barrier (me being french) -------- No, you are excellent.....
"or maybe I am just dumb because I do not quite understand what I am supposed to do...---------- No, you are not, it is confusing AND there is no one way to skin the cat. If money is no option, I'd hire a PI to do this, or a skip trace company to see if there is any money anywhere, owed you. If not, you have to start squeaking yourself to get it done. What is hard is that you don't know for sure that there IS money... so it is a fishing expedition, possibly.
"File a claim for money that obviously has already been given to someone in my behalf back in the days when I was a minor? ------- Again, a child's share can be used for the child's needs, at least as far as SS is concerned. And as you were in France and not here, you'd want to look to the French laws on how a parent can or can not spend any life insurance moneys.
Arghhhhh so confusing.."------- Yes! This is why it is often best to remain close to the parent so you can ask directly from the horse's mouth. If your mother is alive, what does she say about this?