Resource /{merchantId}/mandates - Create mandate
Resource /{merchantId}/mandates/{uniqueMandateReference} - Create mandate with mandatereference
Resource /{merchantId}/mandates/{uniqueMandateReference} - Get mandate
Resource /{merchantId}/mandates/{uniqueMandateReference}/revoke - Revoke mandate
Resource /{merchantId}/mandates/{uniqueMandateReference}/unblock - Unblock mandate
Resource /{merchantId}/mandates/{uniqueMandateReference}/block - Block mandate