diff --git a/hedera-node/test-clients/src/main/java/com/hedera/services/bdd/suites/hip991/TopicCustomFeeSubmitMessageTest.java b/hedera-node/test-clients/src/main/java/com/hedera/services/bdd/suites/hip991/TopicCustomFeeSubmitMessageTest.java
index eb5afb86e6ee..aaf08548d06a 100644
--- a/hedera-node/test-clients/src/main/java/com/hedera/services/bdd/suites/hip991/TopicCustomFeeSubmitMessageTest.java
+++ b/hedera-node/test-clients/src/main/java/com/hedera/services/bdd/suites/hip991/TopicCustomFeeSubmitMessageTest.java
@@ -25,6 +25,7 @@
 import static com.hedera.services.bdd.spec.transactions.TxnVerbs.cryptoTransfer;
 import static com.hedera.services.bdd.spec.transactions.TxnVerbs.submitMessageTo;
 import static com.hedera.services.bdd.spec.transactions.TxnVerbs.tokenAssociate;
+import static com.hedera.services.bdd.spec.transactions.TxnVerbs.updateTopic;
 import static com.hedera.services.bdd.spec.transactions.token.CustomFeeSpecs.fixedConsensusHbarFee;
 import static com.hedera.services.bdd.spec.transactions.token.CustomFeeSpecs.fixedConsensusHtsFee;
 import static com.hedera.services.bdd.spec.transactions.token.TokenMovement.moving;
@@ -386,6 +387,87 @@ final Stream<DynamicTest> collectorSubmitMessageToTopicWithHbarFee() {
                     }));
         }
 
+        @HapiTest
+        @DisplayName("Submit message to a topic after fee update")
+        // TOPIC_FEE_126
+        final Stream<DynamicTest> submitMessageAfterUpdate() {
+            final var collector = "collector";
+            final var fee = fixedConsensusHtsFee(1, BASE_TOKEN, collector);
+            final var updatedFee = fixedConsensusHtsFee(2, BASE_TOKEN, collector);
+            return hapiTest(
+                    newKeyNamed("adminKey"),
+                    newKeyNamed("feeScheduleKey"),
+                    cryptoCreate(collector).balance(ONE_HBAR),
+                    tokenAssociate(collector, BASE_TOKEN),
+                    createTopic(TOPIC)
+                            .withConsensusCustomFee(fee)
+                            .adminKeyName("adminKey")
+                            .feeScheduleKeyName("feeScheduleKey"),
+                    submitMessageTo(TOPIC)
+                            .maxCustomFee(fee)
+                            .message("TEST")
+                            .payingWith(SUBMITTER)
+                            .via("submit"),
+                    getAccountBalance(collector).hasTokenBalance(BASE_TOKEN, 1),
+                    updateTopic(TOPIC)
+                            .withConsensusCustomFee(updatedFee)
+                            .signedByPayerAnd("adminKey", "feeScheduleKey"),
+                    submitMessageTo(TOPIC)
+                            .maxCustomFee(updatedFee)
+                            .message("TEST")
+                            .payingWith(SUBMITTER)
+                            .via("submit2"),
+                    getAccountBalance(collector).hasTokenBalance(BASE_TOKEN, 3));
+        }
+
+        @HapiTest
+        @DisplayName("Submit message to a topic after key is removed from FEKL")
+        // TOPIC_FEE_129
+        final Stream<DynamicTest> submitMessageAfterFEKLisRemoved() {
+            final var collector = "collector";
+            final var fee = fixedConsensusHtsFee(1, BASE_TOKEN, collector);
+            return hapiTest(
+                    newKeyNamed("adminKey"),
+                    cryptoCreate(collector).balance(ONE_HBAR),
+                    tokenAssociate(collector, BASE_TOKEN),
+                    createTopic(TOPIC)
+                            .withConsensusCustomFee(fee)
+                            .adminKeyName("adminKey")
+                            .feeExemptKeys(SUBMITTER),
+                    submitMessageTo(TOPIC).message("TEST").payingWith(SUBMITTER).via("submit"),
+                    getAccountBalance(collector).hasTokenBalance(BASE_TOKEN, 0),
+                    updateTopic(TOPIC).feeExemptKeys().signedByPayerAnd("adminKey"),
+                    submitMessageTo(TOPIC)
+                            .maxCustomFee(fee)
+                            .message("TEST")
+                            .payingWith(SUBMITTER)
+                            .via("submit2"),
+                    getAccountBalance(collector).hasTokenBalance(BASE_TOKEN, 1));
+        }
+
+        @HapiTest
+        @DisplayName("Submit message to a topic after fee is added with update")
+        // TOPIC_FEE_130
+        final Stream<DynamicTest> submitMessageAfterFeeIsAdded() {
+            final var collector = "collector";
+            final var fee = fixedConsensusHtsFee(1, BASE_TOKEN, collector);
+            return hapiTest(
+                    newKeyNamed("adminKey"),
+                    newKeyNamed("feeScheduleKey"),
+                    cryptoCreate(collector).balance(ONE_HBAR),
+                    tokenAssociate(collector, BASE_TOKEN),
+                    createTopic(TOPIC).adminKeyName("adminKey").feeScheduleKeyName("feeScheduleKey"),
+                    submitMessageTo(TOPIC).message("TEST").payingWith(SUBMITTER).via("submit"),
+                    getAccountBalance(collector).hasTokenBalance(BASE_TOKEN, 0),
+                    updateTopic(TOPIC).withConsensusCustomFee(fee).signedByPayerAnd("adminKey", "feeScheduleKey"),
+                    submitMessageTo(TOPIC)
+                            .maxCustomFee(fee)
+                            .message("TEST")
+                            .payingWith(SUBMITTER)
+                            .via("submit2"),
+                    getAccountBalance(collector).hasTokenBalance(BASE_TOKEN, 1));
+        }
+
         @HapiTest
         @DisplayName("Collector submits a message to a topic with 2 different FT fees.")
         final Stream<DynamicTest> collectorSubmitMessageToTopicWith2differentFees() {