Failure to pay me my refund for a cancellation done at the airline's prerogative

I find it really disgusting that Cheapoair is displaying such poor customer service that I am starting to doubt the integrity of the organization and I am beginning to conclude that this is an elaborate scam that many of their customers fall for. I have complained several times made calls, sent e-mails yet every time, someone assures me that this will be sorted out shortly, this is almost 5 months and you still are finding all sorts of ridiculous excuses not to pay me back.
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Last e-mail (see below) I received from them on 21 January said someone would contact me in 72 hours. It is now 11 days and no one has had the courtesy to contact me.
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This stinks. I just want my refund. I have invested so much time and money calling and still have not got my issue resolved.
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Below is the e-mail someone sent to me on January 21, 2017 .
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Dear Ekundayo, Thank you for contacting CheapOair.com. We understand your concern regarding the refund. We really apologize for the delay in resolving your concern. On a priority basis we have once again highlighted your concern to our team and within next 72 hours you will receive an update from our waivers team regarding your concern. We appreciate your patience over the delay. We appreciate your business and thank you for choosing CheapOair.
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Thank you, Paulo CheapOair.com