Locksmith service providers beware. You send NG&G an invoice for the amount owed to you, and they send you payment back for whatever amount they believe to owe you. No one will even call you. They will just figure out an amount, and mail you a check, even if an arrangement had been made for them to only pay you with a credit card. NG&G did it twice to us, but do it to us no more. Thanks to NG&G our company is no longer serving the maintenance sector. This company is untrustworthy, dishonest, unreliable, and difficult to work with. Do yourself a favor and stay away from NG&G Facility Services International.