just phone CS 150 or 0800800150 from mobile and request a DV as you have now moved to digital voice. as @Keith_Beddoe posted the offer was 2 essential phones or 1 advanced phone (may have alexa) or a DV adapter
If you like a post, or want to say thanks for a helpful answer, please click on the Ratings 'Thumbs up' on left hand side. If someone answers your question correctly please let other members know by clicking on ’Mark as Accepted Solution’.
Thank you! It may well have done but I rang them and got a very successful result! They’re sending me the advanced digital with Alexa plus one additional handset for free as I’ve had such a hard time tracking it down! It’s not on the BT website and if you Google it you only get instructions for use. Weird …. Thanks though!