Can you really have two numbers into the same property? Just moved apartments and BT owed me a favour so arranged to reconnect the line into the new apartment last Friday, I moved in and connected the phone and called it and got a new number that works fine, now I am moving away from BT to Plusnet and they were faffing around all weekend stating there was a fault on the line (there wasn’t) which they now advise is resolved but are sending me emails/texts suggesting it’s now active but are advising a completely different number? If I call this number from my mobile, it rings but not in the apartment. BT reckon Plusnet have their records out of date but Plusnet reckon I must have two different numbers into the apartment and that I need to try all the sockets plugging my phone in until I find the one that picks up the number they have given me? That will of course mean my router and landline phone could be located anywhere in the apartment and not where I want them? Does this all make sense? If they are right do I just get BT to disconnect the number they advised and then all the sockets in the apartment should pick up the number from Plusnet?

You can have as many phone numbers as you like. Not that unusual for people to have one number for personal use and one for business if they do a lot of work from home for example.

If there was an active phone line prior to you moving in that was disconnected at some point it is possible that BT gave you a different number when they activated it for you. Plusnet could have the previous number on record.