Frustrating service

I would like to right this review in regards with FNB, I never thought I would reach the point am in when it comes to FNB coz I have been with them and never had the treatment I am having right now, this month I paid charges of R1200 for unpaid things which I paid when I had money in my account but my charges went up to R1200 what for I also don't know and I thought that was enough, yesterday I bought airtime so I can buy data to work, I started work at 10 because my airtime was not on my account and I asked for a refund because I ended up using another money to buy another airtime but I was transferred from 1 department to the other, today I wake up to a bounced debit which went to unpaids that I had to pay R105 for that I don't have because they failed to tell me that I must pay double debits for my life insurance up until June but I was told I must pay double debits until May which I did, now today I wake up to a bounced debit that took my last R105 because they took my R1200 with charges I don't know and all they could tell me is sorry for not letting me know and I know it's not over after month end my account will be on - for things I don't know, I am so frustrated and I think I am done with FNB because it's too much what they doing to me, I had to buy groceries that was short of other things because half my grocery money went to them for things I bought when I had money but to them went to unpaids