5. Invoicing and payment
5.1 The contractual partner's invoices
are to be written and sent to us in duplicate
on completion of his delivery or acceptance
of his service. In content, they must correspond
with our order and contain precise, verifiable
data; value-added tax must be shown separately.
5.2 In so far as no other agreement has
been reached, payment will be made within
60 days net; on payments made within 14
days, we have the right to deduct 3% discount,
and on payments made within 30 days, 2%
discount. We may make the payment either
by a bank transfer or by sending a cheque
at our choice; the risks of transmission
of the payment sum are borne by the contractual
partner. The time limits for payments and
discounts are considered complied with if
the bank transfer order or cheque were sent
5.3 The time limits for payments and discounts
start with receipt of the contractual partner's
correct invoice, but not before receipt
of his delivery or acceptance of his service.
If our order is executed as several partial
deliveries, then the time limits for payments
and discounts for partial invoices sent
to us only start with receipt of the last
delivery and invoice. If we have the right
to delay payment due to defects in the delivery
or service, the time limits for discounts
also run from the day on which the reason
for delaying payment is eliminated.
5.4 We have the right to offset our own
counterclaims, even if these are not yet
due. From the point of view of justifying
a discount, offsetting is the equivalent
of making a payment.
5.5 A cession of claims of the contractual
partner against us to a third party is only
effective with our written approval.