It's my time to contribute after being a hidden reader here

@OP, we need update the first page regarding maxis payment and I got some assistance from jovenne

Maxis does accept AMEX but only via phone. It's not automated but can be done with AMEX.

1) Dial 123 to Maxis centre on Friday night.
2) Speak with customer service representative to request AMEX team to call back you on Saturday morning to proceed your payment
3) On Saturday morning, Amex team will call you back and confirm you on the payment and request AMEX details.
4) Tada Done

Since we're on the topic of paying Maxis via Amex, anyone here is both a Maxis mobile user and home fibre user? How do you pay via amex?

If pay-via-phone, is it possible to pay-both bills at one go? or have to make two calls (one to general maxis, one to home fibre department)?

Just switched to Maxis today from Umobile