If you change the terms of your ‘contract’ by renewal, or by changing products , then as a consequence you could have to take FTTP , if you don’t want FTTP ( for some reason ) then don’t change your ‘contract’ ,and don’t renew, allow yourself to move onto an out of minimum term basis .
You may miss out financially but won’t be moved to FTTP …so in your case , you won’t be able to ditch the landline as that is a re-contracting event…if your requirement to not to move to FTTP, something many would jump at , overrides the financial consideration, just stay as you are , and when out of ‘contract’ , remain out of contract that way no one ( for the short to medium term ) will change your copper derived service.
