Drobekart — Didnt receive refund. Seller is ignoring calls and messages

I had placed an order for 3 outfits in May. She said it will take 25-30 days for delivery. It’s been 5 months and I still haven’t received 1 outfit . She said that I will receive a refund for the same but I still haven’t received it. The co-ord set is of a really low quality. The jumpsuit doesn’t fit me well. I requested her for alterations and she lost my parcel. Recovered it after a month and now the fit is even worse. Now she is refusing to take my calls or reply to any of my messages.