just go live chat and give them the info they ie tracking number aslong you can prove you sent it via the tracking number they will stop hassling you
you might want to remove tracking number an account number from this post this is a public forum every can see this use the edit feature
us this https://www.bt.com/help/contact-bt/account-and-billing/tv
use message us feature
they will need a few account details to verify its you
dont put them in reply to this post use the info in message us
once varified tell them you sent back the eqipment and give them the tracking number
