You can never be.

I did many years back and they kept on coming to promote. Around 2014. Yeah 10 years back.

Called to close it many times and gave up. I paid everything already. Fast forward few years later, they said I have an outstanding. Bruh, paid everything and told them to close. I think the outstanding was around RM10 or RM20. I trust that was the late penalty? I have ordered the account to be closed, no? Glad that they gave up calling me. Never received a reminder bill after all.