A player doesn't have a "right" for their betting history ? What type of world do you live in, you can ask for it, they can share it but in no manner it is a "right". Do you know what a right is ? "Having rights" are usually either imposed with a law (have the right to carry a gun, having a right to vote etc etc) and those are "rights" for a person (changes from country to country and from law to law), in no way or shape anyone has a "right" to know their betting history, it makes no sense.
It is a privilege that if you ask for your betting history they would share anything more than your latest bet, its common sense that they share at least 2000 of them because they want to be competitive and do not want you to go to another website, but if they were to deny you to get even the last 50 bets they could if they wanted to, they just expand that to 2000 to keep you there that is all.
Having a "right" to get all of your betting history should be in the law in order to be a "right" and I bet there is absolutely NO laws requiring casinos to share that information at all. Do not mistake "moral rights" with having a right, it is your own moral compass that suggest "it should be available because its the right thing to do" and even if you are correct that doesn't make it a right, it just makes it a decent thing to do.
What are you trying to say exactly? Are saying that FJ d not have our history data if we ask them to give us? And btw what is the used of these datas if you already past most of the bets that you made? I am sure they are willing to give it to you and evem if they do not give it, there is history about your last bet on the site so you can go there and check whether the site is provably fair or not. No need to ask for more data to prove that they are right