Bought R1000 prepaid Airtime by Error

I have an Easy Zero Account, as I was trying to do my cellphone banking and I kept experiencing interruptions while trying to send myself a R1000 only to find out I've purchsed airtime of R1000. I have written a number of emails to FNB asking for assitance only to be refereed to Terms and Conditions..These are the 2 references I have received, *** & ***Q & ...In my last email I asked for the email of Jacques Celliers as I was told to contact the service Provider without any contact details. I expect FNB to stand up for me as I had used thier platform or assit me. I bought the airtime on the 01 Jan via Mobile Banking and have not used the airtime to date. Such poor service is dissapointing. Why cant this be reversed. I bought the airtime - MTN.