Chat is meant for interaction to users may be your rain farming that is why your were banned for spamming. This action is only natural moderators will do their job on make their room in order.
Most of the chat box box in casinos use for spamming and not really taken seriously by the players, I think there will be a better option or way toimposed actions than banning it way too fast like sending messages of offenses that may result in banning of accounts. There system might be too strict or they set their bot in such a way to really limit the spam but they should indicate or note it beforehand as well answering all the scam accusation in them can keep their business so whenever there are issues or reports in their website,their reason can be known and be heard.
Try to compare in most top gambling sites in the market when it comes to chat moderation where bots/program do limit out on sending spam or simply have some timegap for each chat you do make
and when someone do make out some forbidden or violations about chat rules then this is on where chat moderator would do its work but they shouldnt really be that too strict
on giving out direct ban without any warnings on said violation.
Also, it seems that they dont bother on resolving out their issues?I havent seen that they have responded about these accusations.