Attitudist — Not Returning money ./ Keeping money in Store Credit

I have ordered a sports shoes from Attitudist, But due to pathetic quality I have returned the shoes which got picked by company people as well.

After several reminders they put my money in their STORE CREDIT, which I can't use to buy anything else other then their own website.

This is a clear case of cheating with customers, however in the name of hand crafted articles they are selling very cheap quality shoes on a high prices.

Please help me getting my money back.