Pathetic Customer Service from Absa

I am so annoyed with Absa Bank, I have been a loyal client for about 25 years, I earn a pretty decent salary, have a personal loan with them that payments on is NEVER late, However, I go over on my credit card limit with a few rand and then keep on getting a stupid SMS stating that I must rectify it every day, why did they then allow the dam payment to go through in the first place, I app**** for an American Swiss card which was approved immediately with a Limit of more than double of that of my Credit Card that I have had for almost twenty years and for which, not a single payment have been late or not paid in all these years, that is pathetic, I will be paying off my credit card and personal loan as soon as I possibly can and change to a Bank that will actually appreciate my business. A while back, I actually received an invitation to apply for a credit card from a rival bank with a Start off Limit of 3 times my current Credit card, For Goodness sake, they do not even know my Salary or anything, but they could see my Credit status is good. I am not saying I will use it, but it is nice to know that a bank sees your worth.