Uncompleted withdrawal request

I have been trying to complete my withdrawal request since this year's February. The casino just keeps answering that they have some delays with withdrawal requests and my withdrawal will be completed soon. I think that waiting almost half a year is unreasonably long time.

ZigZagSport.com's license is No. 8048 / JAZ2015-008, received by JocSystems N.V. from Antillephone N.V., Curacao. JocSystems N.V. is registered at E-Commerce Park, Vredenberg, Curaçao, registered in the Chamber of Commerce under the number 134835. I would like to start a complaint process about them, but their email address [email protected] isn't working.