get https://api.splio.com/loyalty/members/
Get a contact membership informations based on its card code.
Error cases
Cardcode does not exist (400)
{
    "status": 404,
    "errors": [
        {
            "error_key": "id",
            "error": "wrong_value",
            "error_description": "Record not found for id ee."
        }
    ]
}Malformatted cardcode (400)
{
    "status": 400,
    "errors": [
        {
            "error_key": "id",
            "error": "wrong_value",
            "error_description": "Card code can only contain numbers, letters, _ and -"
        }
    ]
}