Bad credit record all because of incompetence

Ever since I've opened my account I've been having issues where i get SMSes saying my account is in arrears, first this was fine, I called the branch I bought at and they said they'd resolve it, they didn't and I ended up getting a drop in my credit record all cause someone couldn't load the correct details. <br> January this problem was sorted out, <br> Now I changed banks, and my debit order mandate was confirmed and accepted, it goes off no problem, funds deducted from my account, but wait there's more, I receive an SMS on 02-feb 2015 saying that I should add funds to my account. I phone, and I explain to the lady, she explains it was a mistake and apologizes, PLUS the debit order was set to go off only once. She corrects the information and apologizes, Now today I receive another sms saying I should load funds immediately or my credit score will drop. <br> <br> I don't mean to be rude, but really it's not rocket science to do your jobs right. This is not the first, or the second, but the third time you guys disappoint me. I expect some competent customer service from a Financial institute, ITS NOT LIKE YOU HOLD MY FINANCIAL LIFE IN THE PALM OF YOUR HANDS OR ANYTHING RIGHT? Please. Fix this!!!