Failure to cancel policy and failure to refund

Today is 16 March 2020. I sent MiWay two e-mails on 5 Dec 2019 to cancel my insurance. They failed to do as I instructed. Between 1 March 2020 and 3 March 2020, I sent them mails again, even made contact via the online option and most importantly, via the Chat option. Long story short - mailed them again, online contact again - NO response, no money paid back although I was promised on 3 March 2020, that the money would be paid back by 14 March 2020. Poor, Very poor. So I will persist until I get my money back.