Hi @Mhairi1984 ,
Are you able to log into 'My Account' to see if that gives any more info about a delay ?
For one of the TalkTalk OCE's on this forum to be able to look into this you will need to update your community profile to include your name, landline telephone number & alternative contact number. This will allow them to identify you, and they will then be able to help.
Don't post any personal details in this thread, just add them to your community profile.
Then they will hopefully be able to respond to this post tomorrow.