Hi Becky and Welcome to the forum, you might want to have a look at the following FAQ which explains where everything is
Welcome to Benefits and Work I have moved your query to a topic of its own. It gets very confusing when members post on someone else's topic as it is easy for the wrong advice to be given/taken.
If your claim form has not yet arrived this will set the process back by the amount of time it takes to reach you. It will not slow things down in any other way.
Have a look at our PIP guide so that you can start thinking about your answers beforehand
PIP help for claimants If you have further questions or comments about your PIP, at any stage, please reply to this message and we will do our best to help. You will find it easily in future if you bookmark/favourite it on your web browser now. It helps us enormously when everything relating to the same claim is kept in one place - and I hope you will find it useful too