no manager call back

At 18:12 today I contacted the call centre requesting information the first person I spoke to advised me she was going to transfer me to the correct department, only to transfer me right back to the call centre. The second agent then informed me that she won't help me and that I must call back on Monday. I then asked to speak to her manager and she placed me on hold for what felt like 10 minutes ( don't know if she was hoping I would drop the call) she then eventually came back to me and informed me that the manager was busy and would call me back later. I advised her for him to call at 7:00. It is now 8:15 and still no call. This is unacceptable. I would like to know what cell c will be doing about this shocking service.