the provider insists that there was no malfunction during the specified rounds
This is when you should have payed the player. You asked the provider to investigate, they investigated. It's been over a month now. If wazden hasn't found anything, you need to pay the player. It's impossible to prove the player did not cheat, but if they did, I would expect that your casino wouldn't be the only site they decided to cheat on, and Wazden would have reports from other casinos if they didn't notice themselves. The fact that most of your points and 'questions' for the provider are irrelevant make me think you're just looking for any excuse not to pay.
They asked also for second checks and nothing was found, yet the casino made up that the game provider didn't answers to some made up questions after a months of investigations!!
The game provider confirmed that the all it was asked was sent and they are done in their ends.
The casino is now simply lying and making excuses , and if they are not they can simply build they reputation now sharing the game provider findings.
They are not doing it because they know they should pay the winnings and it is clear they don't want to.
So far the big wins in this forums seem like shillings from people that work for the casino , everyone knows it!!
This is their moment to show to people that real winners will get paid, as if they are not is just another rogue casino with not license praying into innocent gamblers.
This casino give casino crypto a bad name.
See how the casino has stop replying but they were very acting when they were trying to get new players.
I hope nobody plays there till the sort this mess.