The main reason why it takes long for some online casinos to reply your messages whenever you have a complaint is because they have a specific time when their customer service is fully online. If you contact them and they didn't reply fast that mean they're away and have to come online once in a while in order to reply you.
If the online casino has few teams who manages the website, that can be one of the reasons why you might not get a quick reply whenever you chat them up.
If the online casino has few teams who manages the website, that can be one of the reasons why you might not get a quick reply whenever you chat them up.