You cannot unilaterally terminate your parental rights to stop paying support. You may petition the Court to allow you to see your child. In fact, you have every right to see and speak with your child on a regular basis. If she is wanting to have the child support increased, she will have to prove that the circumstances have changed substantially and that either your income has risen since your divorce was final, or that her income has lowered, the child has increased needs not being met by child support. But you cannot stop child support, absent a court order.