I mean it happens every now and then, at least you're able to cash out your bet throughout that downtime. It would've ended as a loss if that cashout of yours didn't came through.
I have to agree with you about the cashouts sometimes they work smoothly but there are times where you have to spam it several times until it registers on their end. My only issue with their odds provider is that whenever you're about to bet on a live match there are tendencies where live scores bugs out and provides inaccurate scores for quite a while and at the same time it affects the cashouts and live markets.
See if the whole system is allowing you to encash then it does mean that at least they are hanging you out on a minor issue that might be from your side. I do think that you need to contact the support team and you need to post this into spam accusations too. At the same time you in have to make sure to keep this topic open. I do think that if they did accept the bet then there was nothing wrong in the first place and it's their fault also therefore, I do think the only way you will be able to go through the whole thing is if you are able to get through the support team and hear their explanation and you can always get the authorities involved if you are not satisfied if the whole thing is legal in your country.
It's called scam accusations.
Beside you think he didn't contact support before he posted this post ?
Did you even read his problem?