Very Unhappy Client

I have had an Account with JD for just over a year.I have explained to them on countless occasions i only receive my salary on the 5th of each month, when i open the account they told me it was perfectly fine, as i will have up till the 7th of each month to make payment.During last year they changed the date to the 4th of each month without notifying clients.So i made all the necessary payments i needed to, so each time they told me i was in arrears,i made they payment of the amount required.However every month they send me a Text message saying I'm in arrears of R520, and on my statements they don't reflect it, so i called them about 4 times and they said i am NOT in Arrears and the messages were incorrect..So 2 weeks ago i received a Text again, and i called AGAIN, and they consultant said i am not in Arrears. so today i called in so i can get banking details to make direct deposits into the account and then A lady tells me MY ACCOUNT IS ARREARS!!!!. i became so frustrated and asked to speak to her supervisor or Second in Charge or her Manager and she tells me they all in a meeting(I worked in customer service so i know the excuse) she then just transferred me to another departme