VETASSESS: Unable to get employment evidence

Hi there,
I am an a college lecturer currently looking to get my skill assessment done through Vetassess. I am unable to get my employment /reference letter from my employer or any senior. What are the alternative document(s) which could be submitted in place of the employment evidence from the employer/ senior colleague ?

Thanks for the help in advance.

There are no alternate documents as far as I know.

I have two set of questions

  1. Can i get a letter from a retired colleague?
  2. Can i give a self declaration of duties and responsibilities along with other supporting documents?

Please advice

thanks,