Worse service I have ever get from FNB

So disappoint about FNB after writing complain I got call from Alexina Mbena who requested me to go en get statement from telkom emis billing statement after telkom was claiming that airtime was loaded of which it was not .I did that then I emailed it to FNB for verification .Alexina said she will give me a call but she didn't . They was two statement that was emailed the one for Nov. But the other one show R30 purchase not R70 Today I made follow up I spoke to Zinelia who said the case no was closed .she said she will ask her to phone me .even friday same story from one of the consultant around 16h31.I don't know what to do because I email the proof of billling statement. FNB decided to close the case .telkom didn't credited me R70 airtime as it show on the bankstatem. I am angry if they closed the case no.because telkom claim it.prooof it's there. FNB don't have a decent of coming back to clients. I have email two statement but no one acknowledge that. They gave me the email for recharge. So disappointed. Why did they tell me to get statement if they knew that they will close the case no.i want to know as they closed it but my proof if with them what picture are they sending yo me about their service.