All payments for Products and/or Services must be received by Seller Net within thirty (30) days from the date of invoice, unless otherwise agreed to by the parties. Any invoiced amount remaining unpaid after thirty (30) days shall be "past due." Past due balances are subject to an interest charge of one and one-half percent (1.5%) per month. Please be advised that any account not paid within 10 Days past due date, will be considered delinquent and will be placed on a Cash/Credit Card basis only.  If the payment term due date falls on a weekend day or holiday, payment is due and payable on the succeeding business day. Invoiced amounts not paid within the above specified terms will be referred to our collection agency.