Very unprofessional in requesting more money after...

Very unprofessional in requesting more money after a voucher was purchased for a designated amount. My efforts to seek clarification was met with rudeness. Unlike Groupon which supports their customers, the yelp representative advised leaving a negative review. This does not help a customer that is being forced to pay extra after a purchase is made for a requested item. This will be my last time dealing with Seaton Hackney stables and Yelp. We hope to find honest businesses in this area since we recently relocated from South Carolina where businesses did not scam their customers. We have always been treated fairly by businesses that advertise on Groupon and yelp. This is not fair taking advantage of customers.