Equipment return nightmare

Moved home long ago, cancelled services after flat sale went through 10th May, now called 4 times after they keep sending me boxes to return the equipment.  I have explained on 4 separate calls that where i have moved to does not have the facility to return the equipment...

I have 7-8 year old equipment, the old old tivo unit and a hub 2 i believe.  The first calls were hopeless, i got chucked around multiple agents, no one has a clue what to do. They then processed an engineer to collect - Again i live on a small island, that doesn't have virgin media let alone any decent fiber.  Simply your agents will not listen.

I then received an email to say you were charging me £40, Ive called again and spoke with a further two agents one of which said please hold and sent me to yodel...again i cannot use yodel, we have basic post available to us.  Pointless waste of my time and my phone bill.

Called again 5 minutes later, agent raised complaint...not 15 mins later you've resolved the complaint with a note of agent retraining.....  At my wits end here, that's now 5 staff in total and not one knows how to sort the inability to return nearly a decade old equipment. 

Can someone with the slightest ounce of sense contact me so  i can resolve this and not be charged silly money for something outwith my control...