Unhappy customer

I am dissatisfied with your service as I have been waiting for my refund. I called with my airtime earlier today to inquire about my refund and spoke to a lady named Xoli. She mentioned that they would call me back, but after 2 hours and 30 minutes, I decided to call back. Xoli informed me that she was busy with other clients and hung up on me. When I called back and questioned why she dropped the line, she claimed I did, which is untrue as I have sufficient airtime. I am quite frustrated by this experience because I never had any issues when booking with you in the past. Now, suddenly, I feel ignored. I request that my refund be processed as soon as possible before I come to PE where I initially booked and cause a disturbance. I trust that you would prefer to avoid such a situation, so please refund my money promptly.