i asked for a refund, but i got no answers

over a week ago, as i was browsing through the shop tab on the browser and i unadvertedly clicked "buy" on the wrong item , that being the dragon hunter wings back attachment, i promptly emailed the GGG support asking for a refund, but they only responded asking for more confirmation about my account... and after over 8 days of that email, nothing ,is there something else i can do???