Droppping call in customers???

Your services are freaking ridiculous and the most appalling agents I have ever spoke to in my entire life, I spoke to a guy today regarding a voucher which you people issued me and it was not working when he could not determine the issue around that and refusing to get me a supervisor he dropped the call on me! HE DROPPED THE CALL ON MY EAR, I TAKE IT THAT IS THE TRAINING YOU PEOPLE ISSUE TO YOUR AGENTS THAT THEY MUST DROP THE CALL ON CUSTOMERS WHEN THEY CANNOT FIND A SOLUTION TO A PROBLEM! Now this is the second time I am contacting you people with an issue and every you either throw money on my face which you did when you issued that voucher which is invalid and then YOU DROP THE CALL ON MY EARS WHEN I TRY TO SPEAK TO SOMEONE ELSE! First of all i dont understand why in the hell you would not have supervisors till the last shift in your call centre! I need a supervisor to call me tomorrow! I want a new voucher and this time it will not be a R100, you need to pay for my airtime I have used to call you people to drop the phone on my ear and it will not end there, I NEED DISCIPLINARY ACTIONS TAKEN AGAINST THE AGENT WHO DROPPED THE CALL ON ME AND I WANT PPROOF OF THAT TOO!!!