Planet fitness ****, charging after canceling contract years after.

Planet fitness a nightmare I wish I never joined. So since I struggled with canceling an already lapsed contract and billed incorrectly by them. I decided to pay everything their collectors and planet fitness claimed I owed and have requested cancelation of contract more times than I can count. Today I receive a message claiming I owe them R249 for what??? I Don't know. I have no standing contract with these guys. I paid everything they ****med of me last year. And frankly I am annoyed with these people, it seems when they get bored they start charging people as an how they want. At this point can someone fix the accounts department because this is annoying and it's taking advantage of people names and information