No refund, no service

I purchased tickets in the beginning of 2020. The show has changed dates several times, which I was made aware of. However I no longer want to go to the show (which is now due for May 2021). I requested I refund on my tickets on the 17 of February 2021. I have still not received a refund and I am no longer getting replies on my email queries asking for feedback. Extremely frustrating! Will never use computicket again!