Stock/Credit Card

Unhappy with service, firstly on my wife's baby shower we received winter clothes so we decided to go to Woolworths Woodlands to exchange but now avail without any good explanation they said its not on the system anymore so we cant exchange or get voucher. Secondly I app**** for a limit increase but received a declined message without any explanation why declined, a month or two ago they phoned me and asked for me would I like a increase on my credit card so how does that work? But anyway, what can I say....