Welcome to the Community and thank you for posting. I'm really sorry to hear about the delays you have had in getting your new services connected. If you send me your information, I'd be happy to take a look at the details of your complaint.
I have sent you a private message with instructions on how you can send us over your details and we'll look into this for you. See: Private messages
Thanks for your assistance via Twitter.
I'm pleased to say that the Open Reach team came out on Saturday and got my landline and broadband back up and running, so I'm grateful for them coming out on the weekend.
Yes thank you it can be marked as solved