Disappoint service received from Woolworths Financial Services

Really disappointed with the service received from Woolworths Financial Services. I have sent 3 emails and called for help (only to receive shocking service over the phone) for something to be fixed with my credit limit increase application. I was told that no one can help me and I need to wait 6 months - this is shocking customer service. My credit limit was increased with no call/message/email to say "are you sure" with no disclaimer of "what is to follow can not be reversed". I am not happy with this at all and I am so disappointed with the service I have received for this to be fixed. Surely when a customer asks for help a solution should be provided and shouldn't just be told "nothing can be done it's too late"?