No way of requesting refund online.

Booked 3 tickets online for a show. Got email from computicket saying that show I booked has been rescheduled for 3 months time.I needed a refund as cannot attend. I called the helpline about 10 times through the day - no answer at all ! I used the online chat - no answer ! I eventually thought I would do it the old fashioned way and go to checkers counter , they said they have to call computicket first and get authorisation. The checkers counter lady was on Hold for 30 minutes - No answer ! Surely if you buy something online you Should be able to request a refund online ! RIDICULOUS “service “