updated code

src/main/java/com/billpaymentservice/bbps/entites/AdditionalInfoBillValidate.java

@@ -0,0 +1,29 @@
+package com.billpaymentservice.bbps.entites;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.FetchType;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.Id;
+import jakarta.persistence.JoinColumn;
+import jakarta.persistence.ManyToOne;
+import jakarta.persistence.Table;
+import lombok.Getter;
+import lombok.Setter;
+
+@Entity
+@Table(name = "additional_info_bill_validate")
+@Getter
+@Setter
+public class AdditionalInfoBillValidate {
+	@Id
+    @GeneratedValue
+    private Long id;
+
+    private String name;
+    private String value;
+    // ✅ Many Params → One Bill
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "bill_id_fk")
+    private BillValidation bill;
+
+}

src/main/java/com/billpaymentservice/bbps/entites/BillValidation.java

@@ -37,8 +37,8 @@ public class BillValidation {
     @Column(name = "biller_response", columnDefinition = "TEXT")
     private String billerResponse;
 
-    @Column(name = "additional_info", columnDefinition = "TEXT")
-    private  String additionalInfo;
+    @OneToMany(mappedBy = "bill", cascade = CascadeType.ALL, fetch = FetchType.LAZY)
+    private List<AdditionalInfoBillValidate> additionalInfo;
 
     // 👇 Proper nested customer params (OneToMany)
     @OneToMany(cascade = CascadeType.ALL, fetch = FetchType.LAZY, mappedBy = "bill")

src/main/java/com/billpaymentservice/bbps/entites/BillerAdditionalInfoPayment.java

@@ -0,0 +1,47 @@
+package com.billpaymentservice.bbps.entites;
+
+import jakarta.persistence.Column;
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import jakarta.persistence.JoinColumn;
+import jakarta.persistence.ManyToOne;
+import jakarta.persistence.Table;
+import jakarta.validation.constraints.NotBlank;
+import lombok.Getter;
+import lombok.Setter;
+@Getter
+@Setter
+@Table(name = "biller_additional_info_payment")
+@Entity
+public class BillerAdditionalInfoPayment {
+	     @Id
+	    @GeneratedValue(strategy = GenerationType.IDENTITY)
+	    private Long id;  // primary key for the table
+
+	    @Column(name = "param_config_id", nullable = false)
+	    @NotBlank(message = "Param Config ID cannot be blank")
+	    private String paramConfigId;
+
+	    @Column(name = "param_name", nullable = false)
+	    @NotBlank(message = "Param name cannot be blank")
+	    private String paramName;
+
+	    @Column(name = "data_type_dao")
+	    private String dataTypeDAO;
+
+	    @Column(name = "data_type_model")
+	    private String dataTypeModel;
+
+	    @Column(name = "optional", nullable = false)
+	    private boolean optional;
+
+	    @Column(name = "visibility", nullable = false)
+	    private boolean visibility;
+
+	    // 🔗 Many AdditionalInfos belong to one Biller
+	    @ManyToOne
+	    @JoinColumn(name = "biller_id", nullable = false)
+	    private BillerDetails biller;
+}

src/main/java/com/billpaymentservice/bbps/entites/BillerDetails.java

@@ -29,7 +29,8 @@ import lombok.ToString;
 	    "billerAdditionalInfos",
 	    "interchangeFeeConves",
 	    "interchangeFees",
-	    "billerPlanResponseParams"
+	    "billerPlanResponseParams",
+	    "billerAdditionalInfoPayments"
 	})
 
 @Table(name = "biller_details")
@@ -151,11 +152,9 @@ public class BillerDetails {
     @OneToMany(mappedBy = "biller", cascade = CascadeType.ALL, orphanRemoval = true)
     private List<AdditionalInfo> billerAdditionalInfos;
 
-	
-	/*
-		 * OneToMany(mappedBy = "biller", cascade = CascadeType.ALL, orphanRemoval
-		 * =true) private List<AdditionalInfo> billerAdditionalInfoPayments;
-		 */
+    @OneToMany(mappedBy = "biller", cascade = CascadeType.ALL, orphanRemoval=true) 
+    private List<BillerAdditionalInfoPayment> billerAdditionalInfoPayments;
+		 
 	 
     @OneToMany(mappedBy = "biller", cascade = CascadeType.ALL, orphanRemoval = true)
     private List<InterchangeFeeConf> interchangeFeeConves;