Ok guys, here's my opinion about "randomness" and programs:
there is no such thing.
Lets get little deeper in the problem.
Why are there online casinos and RNG roulette (they are essentially programs)? Because we, the humans, are gamblers by nature. We want to grow our wealth faster then we've earned by working hard for it. We want to grow our 10K into 100K ASAP. So we work till we've built a little nest and then we start looking for ways to grow it. Because most of the sure things (there is nothing 100% sure on this world, but they are more secure then using the roulette wheel as tool for building wealth) like analyzing the market and buying stocks and waiting for the price to rise and sell them for profit, or buying bonds, or putting our money into investment funds needs big amounts of money and usually bring in low ROI over longer time period. So people decide to gamble and try to make quick money. Here comes into play the sports betting venues (local and online) and casinos (again local and online). Both, the bookies and the casinos are responding to the same basic human need: the need for more AKA human greed and laziness.
I've mentioned the bookies and the casinos, but I didn't mention why they are where they are in the first place.
You can guess it (and you'll guess it right): their owners opened them to make some money too. So when the player is losing, they win. And vice versa. And just like the players are going to the casino and they are doing everything they can do to maximize their chances to win, the casinos do the same. So the B&M casinos have incorporated lots of distractions to interrupt players thinking process, and the online RNG casinos (because they can't distract the players) manipulate their programs to ensure their upper hand and profits.
The only problem with this fixing is the fact that except the crazy results that the RNG wheel creates (and you won't see anything even close to that on real wheels), you can't do nothing to prove that you are right. If you complain they'll say that "The results are totally random." and they will send you few links from the company or gambling commission who regulates their working and tell you to complain there. If you do complain, the GC will wait for few days (pretending they are checking the issue) and then they will send you a long mail where they'll explain that everything is "random" and your case is just one rare case of bad but random luck.
You'll know its BS, but that is what it is: in most of the cases these gambling commissions are based somewhere, 1000s of miles from nowhere, and they have low salaries but they compensate with the casinos big money.
You'll accept your loses, close the account in the RNG casino and will never ever again consider playing in any other online casino.
Because they possess a licence to steal your deposited money.