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But in 9 out of the 10 situations, I've noticed that these customer supports don't know anything about the website, but why are they working there?
They don't know much about anything, and they are working for some salary, which is simple, but it's hard to understand how someone hired them. I heard that support agents work for 300-400 dollars a month, which is certainly a little... the casino saves money by hiring an agency to do it for them. And when the salary is low, unskilled people are employed, as always.
There will be an issue if the support is a third party some party supports hold at least 5 to 6 project on their shift and they have ready a script on them so if your questions is not on their script then you are not going to get the right answer, and besides some questions are that are not gambling related and about platform is not their scope, you have to ask them the admin of the casino some support are not gamblers I encounter one support where I ahve to wait for a few minutes for them to give the right answers, so don't rely on support be specific on the right support that you want to answer all your queries.