@Frances-Borst, you need to post under the "Help with your Talktalk service" area to receive help from TT staff.
Find the message boards and you will see "start a topic" at the start of the lists of messages.
For staff to identify your account, you must complete your community forum profile details.
Go via your avatar/name; settings; launch profile wizard; make sure you put in your landline phone number and a fallback mobile phone number; click finish to save.
Having posted, wait for staff to reply (during business hours) before posting further, to keep your thread moving forward in the workflow.