I returned to BT during the post office confusion, paid a year up front for line rental just a few weeks before the new charge structure was announced, and when the new charges kick in for caller display I will be unplugging the phone.
I have no desire to extend my hitch to BT by re-contracting to keep caller display, and I wont be paying for it - nor creating revenue for BT in traffic to my line (which only really exists to support broadband) - Caller display is something that is necessary due to the inability of the various regulators to take some real action against telephone spammers that call my TPS registered numbers. BT told me they cannot drop calls with spoofed CLI as it would breach international agreements, despite the fact that this action is taken to circumvent UK and EU laws. I am certain that BT could allow for that by amending thier T&C to prohibit the spoofing of CLI on thier network. Nor will they allow call barring from international numbers. All of this means that taking steps tpo stop phone spammers are pretty ineffectual while BT rake in revenue from the traffic this (often illegal) traffic generates.
So it is clear that BT don't really care over much about protecting thier customers from spammers, unless it yields a huge profit for them, so that helps me to decide on my departure from BT again once my current paid-up term expires, and it shows that BT - in their greed have shot themselves in the foot.
Any ISP that thinks that selling my click traffic is acceptable is MisinPHORMed
Surfwise LLU - Finally free of the BTw crawl, but not of BT's speculative invoicing (AKA SFI charges)
SWPM a BT Group investment "Not Spot"