HORRIBLE SERVICE FROM FNB

After 2 days of struggling to get through to FNB I was finally explained where the mess started. FNB sent me an SMS to align my credit card auto payment with my salary date. the date was changed to the 19th so that it aligns with my salary date. because i did not respond to the sms that i never saw FNB went ahead and changed my auto payment date to the 19th. my salary date is NOT ON THE 19, it used to be the 20th. On top of all of this, I sent a request on the 12 April 2019 @ 8:29am to have my debit order with FNB changed to the 25th because this is my new salary date. SO JUST OVER A MONTH LATER, WHY WOULD FNB SEND ME A REQUEST TO CHANGE MY PAYMENT DATES? FNB SHOULD 1st FOCUS ON ALIGNING ITS INTERNAL PROCESSES. Now i have a non-payment reflecting against my name for my credit card. I am reporting this to the ombudsman for banking services as this is utter ****. it was already a nightmare having to change the debit order date and then an even worse experience trying to contact FNB and when I eventually get through the consultants I spoke to hung up on me, told me I am being transferred to a manager but instead placed my call back in the queue, and then I am told that FNB was within its rights to change my dates because I did not respond to the sms that I never saw. I also do not recall indicating that my preferred method of contact is sms. My experience of late with FNB has been horrible and I am at the point where I am prepared to go put up with another bank's BS