diff --git a/backend/apps/accounts/services/otp.py b/backend/apps/accounts/services/otp.py
index 75fe1db..fee893f 100644
--- a/backend/apps/accounts/services/otp.py
+++ b/backend/apps/accounts/services/otp.py
@@ -57,57 +57,6 @@ class ConsoleOtpProvider(BaseOtpProvider):
         logger.info("OTP WhatsApp to %s: %s", to_number, message)
 
 
-class TwilioOtpProvider(BaseOtpProvider):
-    """Twilio provider for SMS and WhatsApp OTP delivery. Requires TWILIO_* env vars."""
-
-    def __init__(self) -> None:
-        self.account_sid = os.getenv("TWILIO_ACCOUNT_SID")
-        self.auth_token = os.getenv("TWILIO_AUTH_TOKEN")
-        self.from_number = os.getenv("TWILIO_FROM_NUMBER")
-        self.whatsapp_from = os.getenv("TWILIO_WHATSAPP_FROM")
-
-    def _assert_config(self) -> None:
-        if not self.account_sid or not self.auth_token or not self.from_number:
-            raise ValueError(_("Twilio credentials are not configured"))
-
-    def _get_client(self):
-        from twilio.rest import Client
-        self._assert_config()
-        return Client(self.account_sid, self.auth_token)
-
-    def send_sms(self, to_number: str, message: str) -> None:
-        client = self._get_client()
-        client.messages.create(body=message, from_=self.from_number, to=to_number)
-
-    def send_whatsapp(self, to_number: str, message: str) -> None:
-        self._assert_config()
-        if not self.whatsapp_from:
-            raise ValueError(_("Twilio WhatsApp sender is not configured"))
-        client = self._get_client()
-        from_ = f"whatsapp:{self.whatsapp_from}"
-        to = f"whatsapp:{to_number}"
-        client.messages.create(body=message, from_=from_, to=to)
-
-
-class UnifonicOtpProvider(BaseOtpProvider):
-    def __init__(self) -> None:
-        self.app_sid = os.getenv("UNIFONIC_APP_SID")
-        self.sender_id = os.getenv("UNIFONIC_SENDER_ID")
-        self.whatsapp_sender = os.getenv("UNIFONIC_WHATSAPP_SENDER")
-
-    def _assert_config(self) -> None:
-        if not self.app_sid or not self.sender_id:
-            raise ValueError(_("Unifonic credentials are not configured"))
-
-    def send_sms(self, to_number: str, message: str) -> None:
-        self._assert_config()
-        raise NotImplementedError(_("Unifonic SMS adapter not implemented yet"))
-
-    def send_whatsapp(self, to_number: str, message: str) -> None:
-        self._assert_config()
-        if not self.whatsapp_sender:
-            raise ValueError(_("Unifonic WhatsApp sender is not configured"))
-        raise NotImplementedError(_("Unifonic WhatsApp adapter not implemented yet"))
 
 
 class AuthenticaOtpProvider(BaseOtpProvider):
@@ -197,8 +146,6 @@ class AuthenticaOtpProvider(BaseOtpProvider):
 
 PROVIDERS = {
     "console": ConsoleOtpProvider,
-    "twilio": TwilioOtpProvider,
-    "unifonic": UnifonicOtpProvider,
     "authentica": AuthenticaOtpProvider,
 }
 
diff --git a/PLANS.md b/docs/PLANS.md
similarity index 100%
rename from PLANS.md
rename to docs/PLANS.md