Hi Mark R
Welcome to the forum.
You might want to have a look at the following FAQ which explains where everything is;
www.benefitsandwork.co.uk/guides-for-claimants/faq/forum If you need extra time to complete the form, make sure you contact DWP and ask for an extension, explain took two weeks for form to arrive.
We have mixed messages on the forum from 4 to 12 weeks on average but some can take longer.
Gary