get http://localhost:8080/v1/payto/mandates/
Can be used by either Initiator or Payer, as long as they are party to the mandate (either created the mandate or authorised it as debtor)
Direct MMS Get Mandate call. Only supports one Mandate ID per call. NPPA doesn't recommend caching data in applications as it may end up out of date - client should call this endpoint each time the mandate data needs to be displayed.