We didn't submit employment letter for my brother but as our dad is working so we did submit his employment letter.
NOA yes
Paystubs yes
Bank statement and other saving and assets for our parents.
Yes we did state the number of members in the IL.
And many more our invitation letter was around 3 pages in writing and with documents it was above 30 pages.
May I ask how did you come up with 30 pages? By including NOA, pay stubs and bank statements? Aren't these docs have to be uploaded on either proof of means of financial support/proof of financial resource of supporter?
But maybe you do not have these options, cause these are for regular trv, yet, your parents were approved for regular trv...
Going back on your super visa, if indeed you correctly applied for it there will be an option to upload your NOA, employment letter etc... so did you really attached these on the invitation letter as well?