Airtime Purchases

I have loaded airtime for myself on the FNB app on the 25th of June I wanted to load R100.00 but made a finger error and loaded R1000.00 The call center doesnt want to help me so I mailed the following person ***

I would like to get the money back into my account because I need the money to pay my accounts if not I am going to cancel my fnb account the weekend because of its **** service