What frustrates me the most about what happened is that a bookie cannot just cancel a bet because odds drop against their favor.

There are endless cases where various players get llisted at let's say 6.0 odds and then few hours later drop to 3.0, or start at 5.0 and then drop to 2.5, or 3.0 and drop to 1.5-2, or start at 2.5 and then drop below 1.5 - I can go on & on. If I got in at the initial odds, then you can say I got a little lucky, but it is not my fault nor is it "unfair" to the bookie, because they are the ones who decided to post these odds themselves and make them official.

It is certainly not a "technical" error either and is not uncommon at all. Therefore, bookies never cancel bets because of these types of situations. I've never had this happen to me before, and I don't know anyone else who faced a similar situation.

This situation is no different than the example I used above.

On the other hand, much like a player could have first been opened at 2.5 and then dropped to 4.0, or started at 3.0 and then dropped to 5.0 or gotten significantly worse odds/better valuation a few hours later, which also happens a lot and is not uncommon.

So if I bet on a player at 2.5 and then a few hours later he's at 4.0-5.0 - that feels "unfair" to me and now I feel bummed that I didn't wait a bit longer, but it is 100% my fault & responsibility for placing the bet at the given 2.5 odds, because at the time that I thought it made sense, so I cannot blame anyone else.

And of course the bookie is not going to cancel the match because of this situation either because it doesn't make any sense.

So you have to respect the odds and fair play at all times, and not go canceling around bets just because the odds changed against you - this happens too many times to count, yet no reputable bookie ever cancels a bet because of that.

Even DarkStart_ agrees with me and wrote that "there's a reason sportsbooks don't cancel all bets that have had line movement against them."