7.2 DB will, upon written request of Client, notify Client of Valuation Amounts referred to in (a) above by the end of the first business day following the date on which such Valuation Amount was calculated. Client agrees that DB may provide notice of any such Valuation Amount by sending it to the email address provided in the Swap Addendum Annex or by posting it on a website as provided in Section 8.3. Unless otherwise agreed by both parties, DB shall not be obliged to disclose to Client any confidential, proprietary information regarding any model used by DB to value a swap. 7.3 If Client wishes to dispute a Valuation Amount calculated pursuant to Section 7.1, it must provide written notice to DB by the end of the first business day following the date on which Client received such Valuation Amount, and such notice must include Client's own calculations of the disputed Valuation Amount, determined in good faith and using commercially reasonable procedures in order to product a commercially reasonable result. 7.4 If Client submits written notice to DB of a disputed Valuation Amount pursuant to Section 7.3 above, then (A) the parties will consult with each other in an attempt to resolve the dispute; and (B) if the parties fail to resolve the dispute in a timely fashion, then DB shall recalculate the Valuation Amount as of the date of such Valuation Amount's original calculation by seeking four actual quotations at mid-market as of such date from four leading dealers in the relevant market selected by DB in good faith, and taking the arithmetic average of the quotes so obtained, provided that if fewer than four quotes are available, then fewer than four quotations may be used, and if no quotations are available, then DB's original Valuation Amount will be used. 7.5 DB and Client agree that the ca►culation of Valuation Amounts pursuant to this Section 7 is solely for purposes of compliance by DB with certain conduct of business requirements und