Your best options is to get an attorney and take them to court to recover your losses. No need to wait, especially for such a large amount of money. Get all your evidence together now so you can take it to an attorney tomorrow morning. If they had intentions on paying you on time they would have set aside your costs so they can be paid on time. Any company that does not do so does not care about paying you on time or staying in agreement with any contracts or other obligations.