Unprofessional and *********** agent

I just had the most horrible conversation with Sphamandla from your VodaBucks department. I honestly don't get why I shouldn't leave VodaCom after that conversation. I've been having challenges with redeeming my VodaBucks points using the VodaBucks store. It keeps giving me the same error message "an error has occurred, please try again later", it's been weeks now. So I was transferred to the VodaBucks department so they could assist me. First Sphamandla's background was super noisy, secondly he just shouted at his colleague with me on the line, without even asking me to hold or anything. Than he comes back to me without even apologizing for what just transpired. Where is the telephone etiquette? Is that how you handle calls these days? Anyways Sphamandla couldn't assist me with my query, all he could advise me was I should delete my important apps on my phone and download the VodaCom app so I can redeem the points. Now where is it stated that I can only redeem the points using the App? What if I don't have a smartphone, than what? Eventually he said he can't help me so basically I should switch off and on my phone till it works. Now please tell me how the hell do y'all have these VodaBucks points if we can't redeem them or have agents like Sphamandla who cant assist with redeeming them? What am I suppose to do with these VodaBucks now?