3 months waiting for my payment

First, let me be clear, I am looking to receive a payment of $500 I won but have been waiting 3 months with no luck. Even after following all guide lines and submitted all documents, here is my story. I deposited in early November with the "crewpon” bonus and at the end of the month you receive a chip dependent on the amount of players that redeemed the bonus as well within the same month. In this month it was 1000 players = $500 chip. I was sure to read guidelines and all rules to this bonus and follow them accordingly. I also deposited before receiving the chip, ensuring there weren’t consecutive no deposit bonuses used to prevent any problems. After receiving the $500 chip I played and completed the play through with a few thousand dollars extra. At this point it was taken from my account leaving $500 as the coupon stated it would. This was around Christmas time so I sat on the balance Ensuring I had all the correct documents to send in. I ended up requesting a withdraw in early January. My withdrawal was approved January 29 to be paid in the form of a check . With my current bank only accepting USA checks I had to opened a new account due to check payment being the only possibility. Since then I have communicated multiple time a week in regards to status updates. March 3rd I received a message from silver oak (robin) stating, they were sorry for how long it was taking for my withdrawal. Then was told they were going to send me the withdrawal amount of $500 on a gift card that would be ATM accessible. I was happy about that so I closed out the new bank account seeing I wouldn't need it. Although, every time I check the status of the withdrawal I get the same thing, “It’s at our processors” I have been told this since early February. I have been nice and patient and wish I could be understanding but have not received any real information to understand. In my opinion it’s very simple to deposit but withdrawal process is a problem. I have contacted them a few times every week with no real outcome. I almost feel like opening a complaint is my only hope of being paid. Everything in this process has been a negative experience for myself except one thing, a person by the name Robin. The little bit of information I did get came from her. on March 29,2016 I called in and was told by Robin the first batch of payments on the new gift cards had a problem.so the process was slowed down but I should receive payments soon. Since then it has been almost two weeks and so long before this, that at this point I feel like I need to file a complaint to be safe. I tried avoiding a complaint in fear of any negitive veriws my complaint may bring for them,I really do like Silver Oak but I feel like this might be the only way I receive the $500 I won fairly

Thank You For Your Time.