I'm not sure if what you're saying is true or you did something that resulted in them cancelling your bet, but you should consider sharing it in their ANN thread so that the representative can reach out to the technical support to see if your placed your bet late or it was as a result of their system malfunctioning.

The Ann link: Stake.com - The Leading Crypto Casino - Drake, UFC, Everton, Alfa Romeo F1 Team

Firstly I want to believe that you're a newbie and this makes it to appear that you purposely created this account for reporting them of your experience, there are similar challenges some users also experienced recently but one thing you need to understand about take is that it's a reputable gambling platform and won't because of your little money jeopardize their reputation on that regards, maybe you try and conform to their requirements for kyc, it may be another reason or contact their customer care from their website, they usually respond but you need to wait and be patient.

It seems like you don't know how to gamble with over/under type of bets, and that handicap has made you have a losing bet.

101-22.5 = 78.5, which is less than 83. Hence you lose.

Be careful with betting, you think that you have won just because you chose a team but with the slip that you have, it's different.

Hmm, it's the first time that I heard that someone's bet has changed after the event has concluded. Do you have any previous screenshots of your bet prior to these ones? It's hard to believe that a platform will be so blatant about cheating their players, especially with Stake whose reputation is already cemented in and out of the forum. I'm not doubting your screenshot, nor your claims whatsoever just because I am advertising Stake under my signature, but what you're saying is taking a step further on the usual claims that people have been throwing at the said platform.

Cantsay shared the official announcement thread of the stake casino with you, you can post your complaint on the thread and lets have the stake admins look at it properly, right now, its hard to really tell whether you are wrong or right, the screenshot you shared is only a chat with a stake customer care, and you seem to be begging them to atleast return your initial bet, why do that when or if you believe you truly won?
if you are so sure you won your bet, hold them accountable to pay you your winnings not beg them, stake is not a scam casino, when they see your confidence in your claim, that will force them to try to look at your bet again to be sure they are not the ones in error, if they discover to be the ones in error, be rest assured your winning will be paid to you account without hesitation.

You misclicked. That's all there is to it. I don't think a million-dollar gambling site like Stake's going to cheap out on customer experience by letting these "bugs" as you put it roam freely on the site. And here I thought you have a serious accusation too lmao. Next time be very careful when you're making bets and don't bet on handicaps if you want to bet on match winner. Plus you're literally asking for money right away and we don't even know who you are. You're literally bullshitting us right now if I'm being honest.

If you have a complaint with Stake, best to put it to their doorstep and refrain from asking people money when we don't owe you anything at all. And if you're that crazy over measly 75 pounds, you might wanna stop gambling altogether as you're definitely not in the right financial disposition I reckon.

That's just the point. OP is feeling the heat already for loosing that amount and you can clearly see it from his/her post.

Gambling is not something you rush into if you don't have the mind to let go of your lose and that's why you are always advice to gamble responsibly with what you can afford to lose. It's obvious that OP is regretting his actions and wiling to reverse the moment if possible to cancel the bet but it is too late. Seeking donation here and there is not the right thing to do after you gamble excessively with caution. In case, you need to bet in the future, go through your selection and picks thoroughly before you click on bet to submit your ticket. It's not your way but glad you are willing to give up early after this lose. What a bad experience for you 

Thank you for not being afraid (unlike me) to click on a link with a strange address (at least for me it is an unfamiliar address) and for making this comment! He made a bet and didn’t even understand what outcome he bet on and immediately ran to complain after he didn’t receive his “win”. Damn, and those "don't play on any site anymore" comments of his 
This is the funniest thing I've read in the last month 

maybe i'm wrong in my comment, but i suppose you're new to the world of sports betting and you took a tip from someone thinking that this person was betting on NY to win and when you saw that NY won you thought you got your bet right until you saw that you lost so contact support, that was your first mistake, the second mistake I realized from watching your conversation with support, it seems to me that you used money that you couldn't afford to lose, I say this because you asked support to tell you refund your money, that is, you showed that you are new to the world of betting

because you don't know that casinos do not refund money lost on any bet, another problem that I see in you is the fact that you have bet your entire bankroll, this is the worst mistake that a person should not make, good bankroll management is extremely important, for example you had 75 euros, you should only be putting 5 euros in each bet, this shows that you do not have good bank management. I advise you not to play in any casino anymore, forget about gambling for your own good

It looks like you are either very ignorant on the kind of bet you made or just a sore loser on a smear campaign. I suggest you read more about how handicap betting works. Stake has a full article about this Handicaps Sports Betting Guide

The truth is, based on the type of bet you made, you lost.