Each time I pay my Streamyx bill at Sam's, I sure face a problem.

They select Streamyx but in fact, for my bill, they need to choose TM normal bill.

Very embarrassing as I always halted the queue behind.

I can't earn any rebate.

Er. Encorp Strand Mall at PJ or at KL then it's Nu Sentral, KL Sentral.

The route to strand mall is killing ppl~~ 

Go there from 1U is better than exit the KD NKVE toll... 

I m using the Cimb visa infinite, all transactions are subject to 0.5%/1% rebates, no need to remember which merchant codes and monitor the credit use per month. No cap on the rebates more straight forward to me.

For Cash rebates.
Tesco online and Tesco retail different rebates, for instance

You can't change merchant code, you can't do much because it's tagged to the terminal. So learn from experience if you don't get cash back.
Refer to this thread: https://forum.lowyat.net/topic/3711577