My credit card was blocked two months ago when I was making a purchase of air ticket at Airasia.com. Reason being, I clicked "Resend TAC code" as I did not receive the first TAC code after waited for more than 5 minutes. However, I received the first TAC code after clicking "Resend TAC", and the same thing repeated for 3 times and my visa credit card got blocked for that reason due to incorrect TAC code being entered for more than 3 times. Tried calling to MBB customer service function [protected]) but I was being put on hold for more than 10 minutes. I was fed up and hung up the call. Two weeks later, I rang the customer service function for the second time, finally I got to speak to the customer service representative. After sharing the incident with the representative, she helped me to unblock my credit card and told me that I could use it immediately. Of course at that point of time I did not test it out because I did not have any online purchases to be made. Today, I need to purchase another air ticket again, and substantial time was wasted at the payment stage as I could not complete the purchase because my Visa card was still blocked! Felt absolutely frustrated and rang up the customer service function again. As usual, I had to go through all the administrative steps and had to wait for at least 5 minutes before reaching the representative. The representative who answered the call was not very friendly and he sounded frustrated having to listen to my complaints. After few rounds of checking and verification, I had to wait for 20 minutes before my problem got resolved. I think Maybank should seriously look into their customer service function since it is one of the reputable banks in Malaysia. To experience this time wasting conversation to resolve a simple issue is highly inefficient. Hope they could really look into this matter.