Flexi Muscles delivering a cancelled order

I ordered a rebounder in the evening but cancelled the order the next day in the morning, I sent an 3 emails to Flexi Muscles with no response from them. Their phone is not being picked up. They delivered the product but I do not want it anymore.

Flexi Muscles I do not want your product, respond to my email with your physical address so that I can bring your product back and you pay my money back.