Bad attitude from her and her superior

Been struggling to get proper help from the call center. My \call forwarding/diverting"does not work and its a problem on the service provider's side. I called them today and the afvisor didnt know what to do. So i told her to maybe ask a collegue thats been there longer than her for assistance as they might have had such a problem before. Only to get an attitude from her telling me that I am insulting her ???!!! I ask to speak to her superior and while talking to her she is clearly trying to whisper to someone on her side!! I ask her about it and she denies it telling me everyone in my eyes have an attitude today asif i am the problem ?? I spend R 120 000 per year at vodacom. I demand actions to be taken and this matter attended to. Needless to say i wasted another 10 mins on the phone with the call centre and my issue is not resolved once again !!! """