1) Make it clear on your ticketing page that you offer diversity tickets.
2) Be specific about what you are offering e.g. is travel and accommodation incuded?
3) Be clear on how you decide on allocation of tickets.
5) Add your event to diversitytickets.org
6.2) Give applicants a reply ASAP - if it's a YES they will also need to book travel and accommodation - making them wait exposes them to higher costs
8) If your quota is exceeded consider offering discounts to the other applicants