LT Online Store — cancel the order but not refunding the amount

I have order for webcam in around of end of may, after multiple followups on email (As they never pick up their phone), on 12-jun they informed me that my order is canceled and after deducting 5% balance will be refunded. Till today 28-jun, i haven't received my refund nor any communication from there side. I am writing them every alternate day but they are not replying to emails or updating on the refund. Please let me know what can be done in this case.