Section 4B: Terms & Conditions / Warranty 169Invoicing. Invoicing cycles are approximately 30 days in length. Invoicing cyclesand dates may change from time to time. Except as otherwise provided in yourService Plan, monthly recurring charges (MRCs) are invoiced one invoicing cycle inadvance. Charges for Services are usually invoiced as soon as possible after thecharges accrue. We may, however, invoice you for usage and charges occurringbefore the invoicing cycle being invoiced, if they were not previously invoiced. Ifyou are invoiced for usage incurred during a prior invoicing cycle, those minuteswill be applied to your Service Plan minutes for the current invoicing cycle.However, if you change your PCS Service Plan between the time the usage wasincurred and the beginning of the current invoicing cycle, those minutes from theprior invoicing cycle will be charged at the rate per minute for usage over includedminutes provided in the Service Plan in effect at the time the usage was incurred.Payment. If you have authorized payment for Services or equipment by credit cardor by debiting a bank account, no additional notice or consent is required before weinvoice the credit card or debit the bank account for all amounts due to us or billedby us on behalf of a third party. You must promptly notify us of any change in yourinvoicing address or of the credit card or bank account used for payment. Wereserve the right to require payment by money order, cashier's check or othersecured form of payment. If we take action to receive payment beyond invoicingyou for charges for Services or equipment, you must pay our costs and expenses ofcollection, including attorneys' fees and expenses, the fees of any collection agencyand court costs. If we act as an invoicing agent for a third-party service provider,payments received are first applied to amounts due and owing to us and anyremaining amounts are applied to sums due and owing to the third-party serviceprovider. We may immediately charge an additional fee for any check or othernegotiable instrument endorsed by you and returned unpaid by a financialinstitution for any reason. You may be charged fees for certain methods of payment.Late Payment Charges. Payment is past due if we do not receive it by the due dateshown on your invoice. Any payment for Services and equipment not made whendue accrues late charges until paid at the rate of 5% per month or at the highest rateallowed by law. Acceptance of late or partial payments (even if marked “paid infull”) does not waive our right to collect all amounts that you owe us. If yourService has been suspended due to non-payment, you may be charged a reactivationfee.Disputed Charges. You must raise any dispute that you have about any chargesinvoiced to you within 15 days of the date of the invoice or you have accepted theinvoice. You may notify us of any dispute by notifying PCS Customer ServiceSolutions. Calls to our sales or general business offices are not notice of a dispute. Ifdisputed invoice procedures are described on the invoice, you must follow them.Account Spending Limit. If we agree to provide Services to you on an AccountSpending Limit basis, we will tell you your Account Spending Limit before we startServices to your Number, or as reasonably practicable after the limit is imposed. Ifwe require a deposit for you to establish or keep Services on an Account SpendingLimit basis, we will hold the deposit as partial guarantee of payment for Services(see Deposits). Charges for Services accrue against your Account Spending Limit as