add getter for case ref  - add getter for case ref from eligibility check on puyblic checker api  - aims to fix error of broken requests from public when saving a case
add getter for case ref
 - add getter for case ref from eligibility check on puyblic checker api
 - aims to fix error of broken requests from public when saving a case

ministryofjustice/cla_backend,ministryofjustice/cla_backend,ministryofjustice/cla_backend,ministryofjustice/cla_backend