Incorrectly charged for a card FNB canceled without my request

FNB canceled my debit card, I went to the branch because I couldn't use it anymore. My card was not expired FYI,the lady at the branch couldn't even give me an answer as to why they canceled it. Then she decided to give me a new card and I asked if they will charge me for it or not since i did not lose it and FNB decided to cancel my card... The lady confirmed they weren't gonna charge me and she took my card broke it and thrown it away and gave me a new card. Now when I try to buy myself airtime I my account is on - 73 and the charged R120 for the card they gave me. I never asked to cancel my card and the FNB employee confirmed I wasn't going to be charged and now this... I'm not happy at all. 1st they inconvenience me since I couldn't withdraw money due to my card being canceled, have to travel all the way to Lenz to get a new card and now they charge me for their own mess.