Welcome to our Community Forums! Thank you for your first post and I'm very sorry to hear that your adaptor did not arrive and that you've not been able to switch your landline over to our new Landline System.
I'll be more than happy to take a look into this for you and arrange for an adaptor to be sent out to you.
I will send you a Private Message to confirm a few details. Please keep an eye out for a purple envelope at the top right corner of your Forum page. I'll be in touch soon.
New around here? Check out the do's and don'ts, in our Community FAQs