The T&Cs were changed on 13th Dec 2019 to say the BT now only loan you the equipment.
Prior to the change there was an early termination charge for the broadband contract and a deferred payment charge for the equipment if you left BT during the period of the minimum term contract.
The deferred payment charge has now been removed from the new T&Cs but if you had the equipment prior to the 13th Dec 2019 you were subject to the old T&Cs and provided you completed your minimum term the equipment did not need to be returned or paid for if you then subsequently left BT.
That in effect means that if you completed the the minimum term the deferred payment for the equipment ceased ie you had paid for the equipment.
If BT now say that you have to return or pay for the equipment you received prior to that date because you have renewed your minimum term it means that they have changed the T&Cs to the detriment of the customer who is still using the "old" equipment and are retrospectively trying to apply a charge to equipment issued prior to 13.12.19.
If that is the case BT will need to explain what the deferred payment was for if not to cover the cost of the hub and also why have the not charged customers, like myself, for not returning or paying for Homehubs 1, 2, 3 which were received prior to 13th Dec 2019.
I would like to see the result when an ex-customer fails to pay the fee and decides to fight it in court. I know who my money will be on and it ain't BT.
