DELAYED RESPONSE AND NO FOLLOW UP

I APP**** FOR A CREDIT LIMIT INCREASE ON MY CREDIT CARD ON 8 APRIL. I WAS SENT A SMS ON 10 APRIL 2015 (FRIDAY) AT 19:58 TO EMAIL PROOF OF INCOME, WHICH I DID ON 12 APRIL (SUNDAY). I FOLLOWED UP ON 14 APRIL (TUESDAY) AND I WAS TOLD THAT IT TAKES 3 WORKING DAYS TO GET RESPONSE. I FOLLOWED UP AGAIN TODAY (16 APRIL) AND WAS TOLD THE I NEEDED TO SEND 3 MONTHS BANK STATEMENT, WHICH ADDS AN ADDITIONAL 3 DAYS TO PROCESS RESULTING IN APPROXIMATELY 2 WEEKS TO JUST GET A CREDIT LIMIT INCREASE WHEREAS ONE NEEDS IT QUICKER. AS AN EXISTING CLIENT I WOULDN'T OF THOUGHT IT WOULD TAKE SOOO LONG. DISAPPOINTED WITH THE EXTREMELY SLOW TURNAROUND TIME AND LACK OF FEEDBACK EVEN WHEN I TOLD MUHAMMAD I NEEDED AN URGENT RESPONSE.