Optik TV Charges

Hi,

I just noticed my account includes charges for an Optik TV subscription, although I never subscribed for it, only internet. I do have a TV box that was given during the internet installation but I recall the installer explaining it came with PureFibre / was included, hence I kept the box. I do not own a TV so I have never used nor opened the TV box, so I was surprised to see separate charges on my account for Optik TV for months now. Is anyone familiar with the steps for cancellation and if possible, refund of the unused service. Thank you!