is due upon a signed agreement of project scope. Marketing Affiliate agrees to pay promptly and in full all charges incurred through services rendered when billed. When paying by credit card, the Marketing Affiliate agrees to pay for all items that are revoked or disputed by the credit card company or the card holder along with any charges or fees charged by the credit card company including fees associated with processing the credit card transaction and that the Marketing Affiliate will be billed for those items in accordance with Equidata standard practices. Marketing Affiliate and the undersigned principal, partner or owner further agree that this Agreement will serve as a personal guaranty by the undersigned principal, partner or owner of the company, and the undersigned principal, partner or owner will become responsible for any unpaid balance past due on any invoice. The Marketing Affiliate agrees to pay a late charge of 1 l/2% per month on the unpaid, past-due amount as well as a returned check fee of not less than $35.00 per returned item. In addition, the Marketing Affiliate agrees to pay 25% attorney's fees plus court cost in the event that the Marketing Affiliate's account is referred to an attorney for collection. 2. Disputes. In the case of disputed charge, defined as a non-payment of an invoice for which notice of dispute has been given in writing by Marketing Affiliate to Equidata, Equidata or Marketing Affiliate may choose arbitration and Marketing Affiliate and Equidata shall be obligated by the terms agreed upon by arbitration and all monies determined owed shall be considered due and payable immediately. Such arbitration does not relieve Marketing Affiliate from its obligation to promptly pay for undisputed charges in accordance with the terms of this Agreement. Such disputes shall be settled by arbitration in