Is it possible to give less than 1 star???

SHOCKING client service. First of all we made a booking from Cape Town international to OR tambo for 25 April 2020 paid for in Feb 2020. For obvious reasons we could not fly. Finally I called in on the 23rd of November to rebook our flights we were then told we cannot use our discovery vitality to book and get our 20% less on flights as they cannot apply the discount on the same booking reference. So I then said what if we cancel that flight and book a new one? Can we then have the discount?I was told that in order to do that they need to issue me with a travel credit.... This could take 6-8 weeks. After fighting with management I accepted the credit. I was told I need to cancel via email, which I did AND only TODAY I received an acknowledgement of email!!! I called in AGAIN today only to be told that the "travel banks" have a back log and the travel credit time has been extended to 10 weeks! I then said to the lady on the phone that I wanted to speak to a manager and she just said no. This infuriated me! She then eventually tried to put me through and said she was busy and would call me back...... STILL WAITING!!!!