diff --git a/src/main/java/ru/nbch/credit_tracker/service/indic/PhoneService.java b/src/main/java/ru/nbch/credit_tracker/service/indic/PhoneService.java
index fe7c623..fa3b27c 100644
--- a/src/main/java/ru/nbch/credit_tracker/service/indic/PhoneService.java
+++ b/src/main/java/ru/nbch/credit_tracker/service/indic/PhoneService.java
@@ -4,6 +4,7 @@ import lombok.AllArgsConstructor;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
 import lombok.Setter;
+import lombok.extern.slf4j.Slf4j;
 import org.springframework.stereotype.Service;
 import ru.nbch.credit_tracker.entities.dto.PhoneFidMap;
 import ru.nbch.credit_tracker.mapper.indic.PhoneMapper;
@@ -12,6 +13,7 @@ import java.time.LocalDate;
 import java.util.*;
 import java.util.stream.Collectors;
 
+@Slf4j
 @Service
 public class PhoneService {
 
@@ -45,8 +47,9 @@ public class PhoneService {
 
         //отсортированный список по NUMBER, FID и FILE_SINCE_DT
         List<FidsData> phonesByFid = mapper.findFids(phones);
-        Iterator<FidsData> iterator = phonesByFid.iterator();
+        log.debug("Start merging fids");
         for (PhoneFidMap phoneFid : subjects) {
+            Iterator<FidsData> iterator = phonesByFid.iterator();
             while (iterator.hasNext()) {
                 FidsData fidsData = iterator.next();
                 if (fidsData.getPhone().equals(9 + phoneFid.getPhone())) {
@@ -57,6 +60,8 @@ public class PhoneService {
                 }
             }
         }
+        log.debug("End merging fids");
+
         return phoneFidMap;
     }
 
diff --git a/src/test/java/ru/nbch/credit_tracker/service/PhoneServiceTest.java b/src/test/java/ru/nbch/credit_tracker/service/PhoneServiceTest.java
index d552d1c..b3973e6 100644
--- a/src/test/java/ru/nbch/credit_tracker/service/PhoneServiceTest.java
+++ b/src/test/java/ru/nbch/credit_tracker/service/PhoneServiceTest.java
@@ -34,6 +34,7 @@ public class PhoneServiceTest {
         List<PhoneFidMap> phoneFidMap = new ArrayList<>();
         phoneFidMap.add(PhoneFidMap.builder().phone("1111").build());
         phoneFidMap.add(PhoneFidMap.builder().phone("1112").build());
+        phoneFidMap.add(PhoneFidMap.builder().phone("1113").build());
         phoneFidMap.add(PhoneFidMap.builder().phone("1114").build());
 
         Map<Integer, PhoneFidMap> res = phoneService.defineFidByPhone(phoneFidMap);