Hi, my name is birthageok. My daughter is 20 yrs old at college. I have never missed the child support. But, for the past ten years, my ex didn't ask for the increase on the child support. Now my daughter is at College. I don't have money to pay for all her college expenses on top of the child support. My ex keeps threatening me about taking me back to court to retro the child support increase based on the living expenses increases if I don't pay for my daughter's college expenses. Can she go back ten years and ask the judge to retro an increase for the past ten years? Thanks.