diff --git a/src/request-management/request-management.service.ts b/src/request-management/request-management.service.ts
index 6a2c4b1..a877168 100644
--- a/src/request-management/request-management.service.ts
+++ b/src/request-management/request-management.service.ts
@@ -158,6 +158,16 @@ export class RequestManagementService {
     };
   }
 
+  /** Keep eligibility rejections distinct from an unavailable CAR_BODY provider. */
+  private throwCarBodyInquiryFailure(err: unknown): never {
+    if (err instanceof ForbiddenException) throw err;
+
+    throw new HttpException(
+      "Car body inquiry failed",
+      HttpStatus.BAD_REQUEST,
+    );
+  }
+
   private stepKeyToPartyRole(stepKey: WorkflowStep): PartyRole {
     if (String(stepKey).startsWith("FIRST_")) return PartyRole.FIRST;
     if (String(stepKey).startsWith("SECOND_")) return PartyRole.SECOND;
@@ -1563,10 +1573,7 @@ export class RequestManagementService {
           await this.blameRequestDbService.findByIdAndUpdate(req._id, {
             $set: { inquiries: req.inquiries },
           });
-          throw new HttpException(
-            "Car body inquiry failed",
-            HttpStatus.BAD_REQUEST,
-          );
+          this.throwCarBodyInquiryFailure(err);
         }
 
         // Raw + mapped stored under vehicle
@@ -2041,10 +2048,7 @@ export class RequestManagementService {
           await this.blameRequestDbService.findByIdAndUpdate(req._id, {
             $set: { inquiries: req.inquiries },
           });
-          throw new HttpException(
-            "Car body inquiry failed",
-            HttpStatus.BAD_REQUEST,
-          );
+          this.throwCarBodyInquiryFailure(err);
         }
       }
 
@@ -3174,6 +3178,7 @@ export class RequestManagementService {
       );
     } catch (er) {
       this.logger.error(er);
+      if (er instanceof HttpException) throw er;
       throw new InternalServerErrorException(
         "Failed to update request with plate details.",
       );
@@ -7369,6 +7374,7 @@ export class RequestManagementService {
         stepsToAdd.push(StepsEnum.F_addPlate);
       } catch (plateError) {
         this.logger.error("Error processing first party plate:", plateError);
+        if (plateError instanceof HttpException) throw plateError;
         throw new InternalServerErrorException(
           "Failed to process first party plate information",
         );
@@ -9009,9 +9015,7 @@ export class RequestManagementService {
           {},
           err,
         );
-        throw new BadRequestException(
-          `CAR_BODY inquiry failed: ${err?.message || "استعلام در دسترس نیست"}`,
-        );
+        this.throwCarBodyInquiryFailure(err);
       }
     }
 
@@ -9861,9 +9865,7 @@ export class RequestManagementService {
           {},
           err,
         );
-        throw new BadRequestException(
-          `CAR_BODY VIN inquiry failed: ${err?.message || "استعلام در دسترس نیست"}`,
-        );
+        this.throwCarBodyInquiryFailure(err);
       }
     }