My autodebit with TNB is signed up at Kedai TNB with my VISA not AMEX.

If Sushi Zanmai accept AMEX, definitely Pasta Zanmai accepts it.

I believe all Nando's accept AMEX.

Chicago Rib House at Gurney Plaza, Penang accepts AMEX.

Sames goes to Chicago Rib House. I only saw Visa/Mastercard emblem at the entrance. I inquired if they accept AMEX when made the payment. The terminal they used is from CIMB.

In theory, every terminal accepts AMEX. Just that whether the merchant pays to enable it or not. On top of that, AMEX charges more than Visa/Mastercard.

Does the SC display any AMEX logo at the cashier desk?

I know Perodua SC uses MBB terminal.

Okay! Apparently the one I went doesn't display that.

It's a 5000km service not the service costs RM 5k.

RM 5k can do an engine overhaul I guess!

It could be either your card or the AMEX network is down.

Which state or shopping complex in particular?

I swiped AMEX at GSC Queensbay and GSC Gurney Plaza. Why you asked?

I'm not a frequent traveler to mainland side of Penang.

Let's me give you a tips for GSC cinema. In order to swipe AMEX, ensure that the cashier uses the UOB terminal. If the cashier uses the EON terminal, it cannot be swiped. I encountered this problem at GSC Queensbay.

Can. For Maxis, you can register for Auto Debit at any Maxis Centre.

Alternatively, you can register for Autopay by faxing the Autopay Registration Form to AMEX.

As I did mention earlier, if the cashier swipes on UOB terminal, AMEX has no terminal but if on EON terminal, it'll be declined.

This is definitely not a shocker. Expected outcome with AMEX. No need to get annoyed of it.

My previous experience was pretty slow and ended up, I have to pay the outstanding amount for 2-month bill at TM point.

They're using MBB terminal and they also accept MBB Visa Debit (cherry card).

Got extra charges for the bus ticket?