Always monitor their usage via the apps. Send them the bills monthly and warn that the utils may be cut if still unpaid.

Inform tnb to cut - but they 100% won’t cut cause got outstanding.

So next step is going to get ugly. U either chase them out and expecting some damage in the house… if condo, disable all access etc or pluck off the tnb brick tho illegal but that’s the only at to save yourself from more damage.

Or u go the nice gentle way and remind them. Speak to them to find out about their hardship and life stories etc etc…

Even u change tenant name also won’t make much difference to be honest. If tenant left with unpaid bills, u can’t reconnect or register a new tenant. U still need to clear the outstanding so tnb wins no matter what.

Just cut.

But be prepared to kick them out just in case.

Yes. If u ask tnb to do it, they lagi won’t cut. Instead they will ask u to make full payment before you approach them again.
So wait tnb action on it themselves or u go down the illegal way- pluck off the black brick connections.
And what the tenant can do is delay payment for three months and make min payments on the forth to continue enjoying electricity until it exceeds three fold deposit amount for tnb action.

Curious.

Is there a clause/agreement in the rent, tenant must pay utilities?

I am tenant before. it is the owner that need to pay. (That was years ago).

This has been discussed here

https://forum.lowyat.net/topic/5243361