PATHETIC SERVICE!!!

I'm am so frustrated right now!!! I lodged a complaint wrt money that was deducted from an.account I opened for my.child's maintenance to.be paid to and also to report that I don't have my credit card nor did I make transactions that brought my balance currently to R16000.-FNB:-) Ref ********** NF Has been issued for your complaint. For updates contact ********** ********** 408-Thobile from the credit card department called and.told me that fnb is allowed to just deduct money from whatever account apparently!!! What nonsense is this??!!! What was due.was 490 which I'm going to settle as soon as my investment comes through, however they took a R300 of my child's school money!!!! You disregard that ***** was committed with the credit card and just deduct money. I've been telling agents and till now nothing has been done!!! This is the second week I'm informing fnb about this!!! I'm done with fnb!!!!