Low cost way to collect high volume payments

curl --location 'https://api.sandbox.finverse.net/mandates/' \ --header 'Idempotency-Key: f9266cf4-e583-4f2c-a20f-e791c9d3facc' \ --header 'X-Request-Id: setup_on_developer_portal-1683832397' \ --data '{ "mandate_details": { "currency": "HKD", "description": "Test Mandate", "end_date": "2024-03-01", "start_date": "{{today}}", "transaction_limits": { "max_period_amount": 10000, "max_period_count": 10, "max_transaction_amount": {{max_trx_amount_in_minor}}, "period": "MONTHLY" } }, "metadata": { "key": "value", "employer_name": "Apple Inc" }, "recipient_account": { "account_id": "contact_finverse_support" }, "sender": { "name": "{{sender_accountholder_name}}", "user_details": [ { "details_type": "{{sender_id_type}}", "values": ["{{sender_id_number}}"] } ], "user_type": "INDIVIDUAL", "user_id": "user_id_1" } }'