It’s easily overlooked, but, when writing to the tribunal, it’s worth making it clear which side you’re on.
This can easily be done by starting your letter:
Case No: 123456/2014 Reed v Cunningham
I act for the Claimant in the above case. I write to apply for…
This is particularly sensible if you’re a representative, since it will be far less obvious that Smith & Jones LLP is acting for Mr Reed than it would be if Mr Reed was writing as a litigant in person.
There is a wider point here. It’s always worth remembering that applications are dealt with by busy judges who are working through a pile of applications. Of course, the judge can almost certainly work out which side you’re on by the nature of the application (and if that fails they can search the file until they find when you went on record). But it’s worth making their lives a little bit easier if you can — if only because it might make them read your application a little more sympathetically.