Almost none of that sounds accurate, can you post the actual wording that you've received?
E-mail from IDNet copied below;
This is an important announcement regarding your WLR copper-based services.
Please do not ignore this message.
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Price increases for customers on legacy WLR copper- based services.
Openreach is permanently shutting down the old copper‑based analogue phone network (WLR) and moving the entire country to all‑IP digital services.
To this end, they are imposing a series of price increases during 2026 to 'persuade' users to move to non WLR copper services before the scheduled shutdown of WLR at the end of the year.
IDNet will be passing these increases on as a monthly surcharge to your bill.
Phone Services
From April 1st 2026 all WLR based phone services (PSTN, ISDN) will have a £2.50 ex vat (£3 inc vat) monthly surcharge applied, this will rise to £5 ex vat (£6 inc vat) on 1st July and then to £10 ex vat (£12 inc vat) on 1st October.
ISDN & PSTN MultiLine services will cease at the end of 2026, please see our Hosted PBX alternative.
Standard PSTN single line services may continue past this date (subject to Openreach consideration) but at a much higher cost and with fewer features.
👉ACTION: If you need to make outgoing & receive incoming calls we recommend you switch to a VoIP based service such as our UBoss Basic & Centrex Single Line.
If you are only receiving calls then our Number Redirection service will be the best option.
If you don't make or receive calls and only use your phone line for broadband, you should first upgrade your broadband service and then cancel your phone service.
If you are deemed a vulnerable person (health reasons or age) with a critical need for landline phone service then please let us know ASAP so we can record this on your account.
Broadband Services
From April 1st 2026 all WLR based broadband services (ADSL2+, FTTC, GFast) will have a £2.50 ex vat (£3 inc vat) monthly surcharge applied.
ADSL2+, FTTC & GFast services will cease at the end of 2026.
👉ACTION: You must engage with us urgently to decide what broadband upgrade option is appropriate for you. We will not be automatically upgrading broadband services.
You can view options and modify your existing IDNet service via our Customer Portal.
Further Information
For further information about WLR switch off please see the WLR Switch Off page on our website.