1. Member States shall ensure that the existence of a credit agreement shall not in any way affect the rights of the consumer against the supplier of goods or services purchased by means of such an agreement in cases where the goods or services are not supplied or are otherwise not in conformity with the contract for their supply.
2. Where:
(a) in order to buy goods or obtain services the consumer enters into a credit agreement with a person other than the supplier of them;
(b) the grantor of the credit and the supplier of the goods or services have a pre-existing agreement whereunder credit is made available exclusively by that grantor of credit to customers of that supplier for the acquisition of goods or services from that supplier; and
(c) the consumer referred to in subparagraph (a) obtains his credit pursuant to that pre-existing agreement; and
(d) the goods or services covered by the credit agreement are not supplied, or are supplied only in part, or are not in conformi