Not Refunding !!! Scammers

I have purchased a power bank. It had scratches on it. I contacted them. told me to send pictures. Than they sent courier person to pick up after almost 10 days. Still its been one month, I have not received my refund. When I contact them, they are telling quality check passed, will contact me after one day. Still counting time, when they will call me and refund me my money. I have also emailed them about 4-5 times regarding getting update. But no answer. They are so cheap.