Yes, linked. I pass that toll twice almost daily. So far this has happened 2 or 3 times in the past month. Every other time it deducts from my ewallet.

TnG lane

Why Touch n Go not deduct from eWallet?

No, because the balance in the Touch ‘n Go card and the eWallet are separate and not interchangeable. Toll fare deductions can only be done from one source of the fund at a time and thus, you will not be able to pass through the toll. You would either need to reload your Touch ‘n Go eWallet or card.

This is for LRT not toll

For tolls with Paydirect enabled, it should always deduct from the ewallet balance first. If your ewallet balance is insufficient, it will then deduct your card balance.

At least, that is how it should be. I've been using paydirect with no issues at all for years now. I have no idea what they did at this toll that is causing this problem now.