Well, the replies above were right. Strong evidence is need when you are accusing a gambling site. Transactions, or screenshot as long as the uneditable photo you have shown. Because in the gambling industry there are so many gambling sites competitor, perhaps you are trying to destroy their image. Well, I have been searching for a while in google I saw that there's scam accusation alleging in that gambling site. Indeed, you need to show a shred of strong evidence.
I suggest you ignore the scam accusation you see on Google search, there will always be a scam accusation against every site no matter how reputable it maybe and some are mere accusations to reduce the traffic on this site and this can be the work of the oppositions just like you said. So not all accusation are for real.
I think this site in question have not really been in the news for dubious activities, I have done some deals with them both as player on the site and also on campaigns and to an extent they have been fair, so this could only be a mix up. And how on earth can one even lay such grievous accusation without evidence?? Was it right for people to ask for it first? This ought to have come first to me. But whatever it is, I am sure it will definitely be resolved soon because I trust the site.