Redeem ticket via *** not answering emails for 8 weeks, also contact centre not answering phone numbers

Hi I would like to know. Bought I ticket last year with Kulula and due to Covid could not fly. I followed all the instructions on their website of how to reclaim and rebook the new flight. The call centre is not answering their phones and I e-mailed the *** on the 4th of February 2021. They mentioned that they will come back in 6 to 8 weeks. Wow, cannot believe you have to wait this long for any response. I did not receive any feedback in 2 months. I need to confirm flight for early next month, and want to redeem the ticket as explained on all the websites etc. Nobody answering my query. Can anyone tell me what I can do?