Request: 'https://api-m.sandbox.paypal.com/v1/payment-networks/linked-instruments' Headers: Array ( [0] => Authorization: Bearer A21AAIQOJP_qb2UVvRoakKFdeJFX9ANV7dwtcAbFL1nlrfAyohP4_VPUoGUlPT44S62pSh6RX0Wmm5aA5mONiTwgJF9Q4V5XA [1] => PayPal-Request-Id: 03162022170422 [2] => PayPal-Partner-Attribution-Id: CLKingsAvatar [3] => Content-Type: application/json ) Body: { "referral_id": "7d228f7342fa2999c86a9b8844ba40de316b03f304780e496bda5ffb5435a90d", "card_accounts": [{ "identifier": "4005481705538048", "reference_financial_instrument_id": "B2121XYZ", "expiry_date": "2020-12", "billing_address": { "address_line_1": "2211 N 1st Street", "admin_area_1": "CA", "admin_area_2": "San Jose", "country_code": "US", "postal_code": "95035" }, "account_holder_name": { "given_name": "John", "surname": "Smith" } }] } Response: {"links":[{"href":"https://www.sandbox.paypal.com/myaccount/money/cards/pull/p3?referral_id=7d228f7342fa2999c86a9b8844ba40de316b03f304780e496bda5ffb5435a90d","rel":"redirect","method":"GET","encType":"application/json"}]}