At this time, Ladder does not offer the ability to change your payment date. Your payment date is based on when you accepted your policy. For example, if you accepted your policy on the 10th of January, your next payment date would be on the 10th of February.
If you ever miss a payment, you'll enter a 61-day grace period (or 60-day grace period depending on your policy). Your policy will remain active as long as we receive the payments due before the end of the grace period. You can learn more in What happens if I miss a payment? or in your policy documents.