Bad attitude

I contacted Multchoice and chatted to Precious L about wanting to change my debit order date to the last day of the month. She explained the pro-rata which I had no problem with. I was disappointed and the attitude she gave me towards the end. We are in January, and I stated last day of the month, and she chose 30th and when I queried that, she blamed me for not stating which date to change the debit order date to. When I explained this will most probably bounce and reflect bad on my credit record, she couldn't care less and told me the best I can do is to call in a month to change the date again. This is bad service at its worst.