Homeshop18 — Received worst quality with defective product, not arranging Reverse pickup

The recent business punch line of HomeShop18 is "SHOPPING MAKES ME HAPPY" which is really great. but the question comes in mind "Are they really taking care about the customer satisfaction". If so then why I am struggling since last month with the order:[protected]Designer Pearls by Sempre of London) dated on 28th May which was worst quality with defective(two stones missing) one and hence I requested them for reverse pickup. I have received an email from them about the reverse pickup confirmation on 5th Jun. After that customer care is simply avoiding me and telling that within 48hrs someone will call from bludedart and will pickup the product. I hv called them several times but still I hv not received any call from bluedart or Homeshop18 guys. I have registered complaints on the same repeatedly but no action has been taken. Complaints numbers are:[protected],[protected]. My question it may take sometime but why they are promising that within 48hrs it'll be resolved. I think 10days is enough for arranging a reverse pickup. I don't have any option to contact with Homeshop18. I would request to Homeshop18 to process it fast and i dont want replacement I want refund.