Surveyeah Rewards and Voucher Complaint - Unresponsive Support

I thought Surveyeah would be a fun and easy way to get some extra rewards, but it has been a huge disappointment. They haven't been giving out rewards on time for the past few months. I used a voucher on June 5th of this year, and I still haven't gotten it. I've sent them a lot of emails, and all they say is that they don't have any vouchers. It's been almost three months since I last heard from them. It seems like they don't care about their Nigerian people at all. Also, surveys are very rare, and when you finally get one, the pay is so low that it's not worth the time. I can't say I recommend it.