Refused to pay due to negative review

Said they'd only pay me if I removed my review. They were told the review would be removed if they made payment - which they didn't. They promised to pay 30 April. When phoned today they claimed the funds haven't been released because of the negative review. This is completely *******. They have also tried to remove my past reviews here on Hellopeter. Good thing is I have audio recordings to correspond with my claims. The claim was expedited, yet the payment date has already extended their 30 day period as stated in the terms and conditions.