* Familiarizing yourself with all fees BEFORE posting a listing or using our services. * Checking your invoice page regularly and checking the details of your invoices. * Making sure payment of all invoices is made on time and by following the payment instructions. * Immediately reporting any invoice you feel is incorrect by following the instructions in this FAQs. * Requesting refunds in a timely manner by following the instructions in this FAQs. * No matter why you feel you should not pay an invoice you MUST NOT ignore an invoice.