Not the best start for a casino, but if BiggerZ is to survive on the forum for the long term clearing their name on these third party platforms like casinoguru will help them a great deal, then maybe you could consider starting off from a new page then everything will fall in place.
And what's with Betby.. these guys need a system shake up because it's always them!
Always heard about about issue with Betby and maybe they should look for alternative aside from that provider. Maybe it can help them a lot to avoid experiencing much further issue.
Also its not really good for their casino to have those kind of accusations. Because this is will give problems with their operations. So aside from running a campaign, much better for them to look back those issues thrown to them then try to fix that mess.
Most probably those negative assumptions of people will get erased once, if they see them taking actions with their pending issue.