Get SEPA id by customerId and communicationChannel

curl --request GET \
  --url https://gateway.cyrexa.com/customer/1.0.0/getSepaId/{customerId}/by/{CommincationChannel} \
  --header 'Authorization: Bearer <token>' \
  --header 'tenantId: <tenantid>' \
  --header 'token: <token>'

{
  "statusCode": 123,
  "message": "<string>"
}