bad attitude towards a client

I called old mutual call center customer care I spoke with woman who me while she updating a debit order for me the phone got cut, I ran out of air time. I bought air time so that I can call again to get assurance that the debit was being done for me, there call went to some department and a phone was picked up by a woman whom we spoke for some time, before being transferred to Mr mponeng I explained that I was on a call earlier. The phone got dropped he does security checks I tell him that there work num I don't know it bcz I moved from that department last year November, I can verify home tell that's when he started to come with this attitude ' I will ask questions that I want to ask or I won't help you ' im like bra I have explained to you that I was on call just now with one of agents and I ran out of air time. His response ' don't call us if u don't have and you must buy airtime or go to a branch ', I stopped to talk with him. Why is he there to help me not to give me that attitude. I'm having second thoughts.