My bank will mail me a bad check in 4 or5 days...get a new bank? The customer will tell you to redeposit the check. Do so and ask the bank to call you ASAP if it does not go through. Or if you have the time, go to the customers bank and cash the check in person. If the check bounces twice you cannot deposit it again. You must get a new check from the customer. If this goes on and on...get a Mechanics Lien form and fill it out and mail it to the customer(before you file it) Include bad check charges and interest at 18% on the lien. This may get you a response!