Tenant cancelled Utilities & Late/Behind on Rent

[Rob Moogan]

Tenant moved in in August'21 and ended their service with PSEG in December. By default, PSEG has been charging me, the owner who is an owner occupant in this multi-family. I just noticed I the drop in utilities this week. Since January they have been late and behind on rent. They have only paid half this month and been unresponsive. I'm preparing a certified w receipt Notice to Cease this week. 

Has anyone had any luck with speaking with PSEG? Since I am the owner, by default will they charge me or can I call and ask for discontinued service after delivering notice to cease with deadline to pay?

This is not a section 8 tenant or building.

Thank you everyone in advance for your help!