the invoice. If Customer disputes all or any portion of an invoice, it shall be required to pay only the amount not in dispute, and in such event Customer shall notify Manufacturer of the amount and nature of the dispute. Payment by Customer of any amount reflected in any invoice shall not result in a waiver of any of Customer's rights under this Agreement. If any payment required to be made under this Agreement is not made within twenty (20) days of the applicable date when such payment is due (the "Late Payment Date"), interest shall accrue on such past due amount from the Late Payment Date until the date payment is actually made at a quarterly rate equal to the lesser of (i) the Three-Month U.S. dollar LIBOR (Reuters Page LIBOR01) on the Late Payment Date (or the next Business Day if such Late Payment Date is not a Business Day), and (ii) the maximum rate permitted by applicable Law. Time for any payments hereunder shall be of the essence. 3.6 Taxes. (a) All sums payable under this Agreement are exclusive of any amount in respect of VAT. If any action of one Party (the "Supplier") under this Agreement constitutes, for VAT purposes, the making of a supply to another Party (or a member of that Party's Group) (the "Recipient") and VAT is or becomes chargeable on that supply, the Recipient shall pay to the Supplier, in addition to any amounts otherwise payable under this Agreement by the Recipient, a sum equal to the amount of the VAT chargeable on that supply against delivery to the Recipient of a valid VAT invoice issued in accordance with the laws and regulations of the applicable jurisdiction. (b) Without duplication of amounts covered by Section 3.6(a), Customer (or the applicable Affiliate) shall