Credit card transfer has not been made

What a bad service I got from the pnp customer care, I wasted almost R200 on air time because they keep transferring me to all the departments, This shows that their call center agents don't know what they are doing, they could not link my credit card and I want to close this account because of the bad service I am getting, I find it useless for me to be their customer because they don't care about my needs, the other thing is that I had to hold on for about 15 minutes listening to their songs waiting for assistance, Using my airtime. I am really not happy