WTA chief executive Steve Simon insists his organisation is doing as much as it is able to for players from Ukraine.
World number one Iga Swiatek has said there should be a greater focus on helping Ukrainian players as the Russian invasion enters a second year.
She argued stricter guidelines and better leadership may have prevented Russia's Anastasia Potapova wearing a Spartak Moscow shirt at Indian Wells earlier this week.
"We continue to do as much as we have the ability to do," Simon told BBC Sport.
"We have done a lot for our athletes, I know there's a variety of opinions on that out there.