Bad service

I just called Capitec call centre (@16:10 on the 28/12/2022)regarding my loan, I spoke to an agent however didn't get his name I was with him on the phone for about 7minutes then he told me that his system is giving him problems he's transferring me to another agent and I told him I don't have airtime can he call back but he just transfered the call and I find that very rude because I called the least he could have done was to call me back after explaining my story to him. I'm not sure if Capitec doesn't value the customers or what because I don't think calling the customer back is a sin. I very disappointed