diff --git a/src/bot/handlers/unverified/callbacks/menu.py b/src/bot/handlers/unverified/callbacks/menu.py
index 69be429..0e9fb93 100644
--- a/src/bot/handlers/unverified/callbacks/menu.py
+++ b/src/bot/handlers/unverified/callbacks/menu.py
@@ -111,7 +111,7 @@ async def call_finish_verification(
     status = await verify_student(
         tg_user=telegram_user,
         name=data["full_name"],
-        student_id=int(data["self_id"]),
+        self_id=int(data["self_id"]),
         is_student=data["role"] == "student",
         group_id=data["group_id"],
         session=session,
diff --git a/src/bot/handlers/unverified/commands/menu.py b/src/bot/handlers/unverified/commands/menu.py
index 9f4fe84..8242a93 100644
--- a/src/bot/handlers/unverified/commands/menu.py
+++ b/src/bot/handlers/unverified/commands/menu.py
@@ -1,4 +1,3 @@
-from aiogram import F
 from aiogram.fsm.context import FSMContext
 from aiogram.types import Message
 
diff --git a/src/bot/services/types/verification_statuses.py b/src/bot/services/types/verification_statuses.py
index f449cd9..90bc272 100644
--- a/src/bot/services/types/verification_statuses.py
+++ b/src/bot/services/types/verification_statuses.py
@@ -14,6 +14,4 @@ class VerificationStatus(Enum):
 
     NOT_FOUND = auto()
 
-    ALREADY_BOUND_TO_CURRENT_ACCOUNT = auto()
-
-    ALREADY_BOUND_TO_ANOTHER_ACCOUNT = auto()
+    ACCOUNT_ALREADY_BOUND = auto()
diff --git a/src/bot/services/verification.py b/src/bot/services/verification.py
index ddc7e19..00af038 100644
--- a/src/bot/services/verification.py
+++ b/src/bot/services/verification.py
@@ -5,7 +5,6 @@ __all__ = [
 
 
 from loguru import logger as loguru_logger
-from sqlalchemy.exc import NoResultFound
 from sqlalchemy.ext.asyncio import AsyncSession
 from sqlalchemy.future import select
 
@@ -39,7 +38,7 @@ async def verify_student(
     tg_user: TelegramUser,
     name: str,
     is_student: bool,
-    student_id: int,
+    self_id: int,
     group_id: str,
     session: AsyncSession,
 ) -> VerificationStatus:
@@ -58,44 +57,56 @@ async def verify_student(
         VerificationStatus: result of the verification process.
     """
     if tg_user.university_member_id is not None:
-        return VerificationStatus.ALREADY_BOUND_TO_CURRENT_ACCOUNT
+        return VerificationStatus.ACCOUNT_ALREADY_BOUND
 
-    query = (
-        select(Student)
-        .where(Student.name == name)
-        .where(Student.student_id == student_id)
-        .where(Student.group_id == group_id)
-    )
+    if is_student:
+        query = (
+            select(Student)
+            .where(Student.name == name)
+            .where(Student.student_id == self_id)
+            .where(Student.group_id == group_id)
+        )
+    else:
+        # Fixme: Add Teacher query.
+        # https://github.com/orgs/dibuildo/projects/2/views/1?pane=issue&itemId=135551755
+        query = (
+            select(Student)
+            .where(Student.name == name)
+            .where(Student.student_id == self_id)
+        )
 
     result = await session.execute(query)
+    found_member = result.scalar_one_or_none()
 
-    try:
-        student = result.scalar_one()
-
-        if student.tg_users:
-            return VerificationStatus.ALREADY_BOUND_TO_ANOTHER_ACCOUNT
-
-    except NoResultFound:
+    if found_member is None:
         # FIXME: placeholder.
         # In a real scenario we should return NOT_FOUND.
-        loguru_logger.info(f"Creating new student: {name}")
+        loguru_logger.debug(f"Creating new student: {name}")
 
         student = Student(
             name=name,
-            student_id=student_id,
+            student_id=self_id,
             group_id=group_id,
         )
-
         session.add(student)
+        tg_user.university_member_id = student.id  # pyrefly: ignore
+        student.tg_users.append(tg_user)
 
-    tg_user.university_member_id = student.id  # pyrefly: ignore
+        await session.commit()
 
-    student.tg_users.append(tg_user)
+        loguru_logger.debug(
+            f"Successfully bound user {tg_user.id} to student {student.id}"
+        )
+
+        return VerificationStatus.SUCCESSFULLY_BOUND
+
+    found_member.tg_users.append(tg_user)
 
     await session.commit()
 
     loguru_logger.debug(
-        f"Successfully bound user {tg_user.id} to student {student.id}"
+        f"Successfully bound user {tg_user.id} "
+        f"to university_member {found_member.id}"
     )
 
     return VerificationStatus.SUCCESSFULLY_BOUND
diff --git a/src/bot/utils/registry/__init__.py b/src/bot/utils/registry/__init__.py
index f8ed7fc..fd2bef3 100644
--- a/src/bot/utils/registry/__init__.py
+++ b/src/bot/utils/registry/__init__.py
@@ -103,7 +103,7 @@ class RouterRegistry:
         if isinstance(chat_types, ChatType):
             chat_types = [chat_types]
 
-        if isinstance(filters, Filter):
+        if isinstance(filters, (Filter, State)):
             filters = [filters]
         elif filters is None:
             filters = list()