Limt increase first approved and now declined

I phoned Standard Bank on 01/08/2015 to apply for a limit increase on my credit card and my limit increase was approved but my interest rate increased (I know prime increase but the increase was 2%) and was told to query this with customer care. After talking to 4 people and being on hold for about half an hour they could not give me a concrete reason as to why the interest rate increased but on my previous limit increase it stayed the same? The people I spoke to are Medusi, Sisha and Ayanda.<br> <br> And today I phone again to enquire about the limit increase that was approved and decided to take the higher interest rate I had to re apply and am now declined for the same limit increase??? How on earth does that work nothing has changed in the current week... And for security purposes I have to apply again? Sure no problem nothing changed so why would I be declined...And I got asked 2 different sets of questions when applying. Weird.<br> <br> Been at Standard Bank for almost 10 years and think time for a change as their customer service is getting weaker and worse every time I have an query or question. <br> <br> <br> <br>