Your request couldn’t be proceed because you have spam them multiple times for this username. So probably they blocked you for username or your ip for same username or both for submitting request for 7 to n number of days.
Because they blocked your username. There AI might be detecting it as a spam. It takes 7 to n number of days to get this unblocked. I have got all the disabled account activated in my cases I have solved. You can contact me at Instagram @sunwadhwani2102