I owe them !!never knew

I went to FNB to collect my new bank card which i app**** for Online to my surprise when i got there the agent told me i owe them R1300 +R300 Mhhhh Why was i never notified about this only GOD knows .They classified me as a bad debt client LMAO!! the business acc that i owe R1300 never got activated because they where still awaiting documents ... Just sow disapointed and ****ed .. Or was it just the agent been a ***** because i used my Passport and she send me back to get an affidavit ..after all that trouble than she tells me she cant open an account for me..!! Why would i recommend FNB to any one else after today..!!