Sols is right as in there is 2 or 3 real Curacao licenses... but they all give out sub-licenses. Probably cost you 10-15k USD max to get this all set up and if your paperwork (minimal) is in order probably takes about 7-14 days (in regular times).
Admin is also right, HBM is very very established and respected in Curacao + worldwide in this industry. If anyone can set get you set up with banking with such a set up it would be them.
Curacao license is pretty much bottom of the barrel worth jackshit if you are a start up. Expect to get rejected from almost anywhere from casino providers, processors, marketing platform to EMIs and BANKS.
Yes, there are some bigger sites using this garbage license (1xBET family etc..) but they push serious volume so when they sit at a table and ask for certain services they get a pass. As a startup I wish you luck.
Maltese license which would be a step up from Curacao is going down the same road, its a matter of time. Malta license holders can't even get maltese banking anymore! LOL
Another member on this forum that may be able to help you is fshore, I have no relation to him but he knows his stuff when it comes to gaming also.