Spice Jet Airlines — Haven't received refund after 70 days

I made multiple attempts to book ticket from Delhi to Chennai. SpiceJet would debit ticket amount from bank but failed to issue ticket during each of attempt. I reached out to them multiple times for refund. HE4HHD / A9W2XC / EC7B6G / DHBCVX are my reservations.So far it’s been 80 days from date of booking and I haven’t received my refund. I always get a standard response from Customer relationship team about technical glitches and I will get refund once it’s resolved. Team never cared to explain glitches and provide ETA. It’s terribly disappointing when SpiceJet doesn’t provide appropriate resolution and it’s on customer to follow up and continue with mental agony to obtain refund.