I requested a payout on April 4th, 2018, for about $1900. I have played on this website in the past and received payouts in the past.
Because I have had payouts in the past, there should be no issues with verification and i did not use a bonus to obtain my winnings.
I have been told the delay is due to a higher than usual amount of payout requests around the time of my requests, and excuse that has been used numerous times and one that is impossible to verify from the player's end. Four weeks should be more than enough time, even taking into account general delays.