Around 8th April, I won a significant amount using a free bonus on BitStarz. Unfortunately, I later realized I had mistakenly placed bets over the maximum allowed amount during bonus wagering. I immediately acknowledged the error, apologized, and appealed to their support team for a goodwill consideration — understanding that I made a genuine mistake and expressing my willingness to accept a partial payout or even just the return of my deposit.
i don't understand casinos that have max bet amount terms for bonuses but don't hardcode them to make sure there is zero chance a player will go above it.
like obv, if you set no limits, some players will break the terms by mistake.
i checked their bonus terms (
https://www.bitstarz.com/bonus-terms-and-conditions) and apparently, if you give up your bonus, you can get your deposit back.

Any advice on how to escalate this further would be greatly appreciated.
i know you already been waiting for 3 weeks, but i would say wait a bit longer and see if you get an answer soon.