Stopped using flipkart after bad experience

I bought some stuff on Flipkart. Product didn't match expectations. I returned. I accepted to get refund as Flipkart giftcard which I can use to buy another product upto 1 year. My flipkart account shows Giftcard but to use it for next purchase I required a pin. I never received the pin. I tried reaching customer care but they don't have humans to handle customer complaint and AI chatbot could not resolve the issue. The site doesn't have a customer care phone number or email address. We have to post a letter to send a complaint !! Finally I posted issue on LinkedIn and someone from company responded that they apologize inconvenience and will look into the matter. It's been almost 2 months. I did receive a call from Flipkart once but the other side couldn't hear my voice and hang up. After that no one tried to reach me. I still have giftcards with 1000 + rupees balance unused. ​ Yesterday I found this news item about iphone fraud at the company.