Standard bank terrible service

I am so disappointed in Standard bank. I made an instant money voucher and cancelled it on 3rd of September. Even today I have not received the refund. I have sent the email 4times, I get an automated response that they will call me but they never did. On top that I called their instant money quiry no. 5 times, consultants give me a reference number but I still haven't got my money. They make you hold until you run out of airtime and dont even call you back.