@@ -3,23 +3,38 @@ import { useDispatch } from 'react-redux'
 import { Box } from '@mui/material'
 import CircularProgress from '@mui/material/CircularProgress'
 import { useRouter } from 'next/router'
+import { useSession } from 'next-auth/react'
 
 import { addReferral } from '#/entities/user-account/model/user-type-slice'
 import { NextPageWithLayout } from '#/pages/_app'
+import { useShowDataStore } from '#/shared/lib/hooks/use-show-data'
 
 export interface ReferralRegisterProps {
 	email: string
 }
 
+const REFERRAL_BLOCKED_MESSAGE =
+	'Вы не можете повторно зарегистрироваться по реферальной ссылке или стать рефералом после регистрации.'
+
 const ReferralRegister: NextPageWithLayout<ReferralRegisterProps> = ({ email }) => {
 	const dispatch = useDispatch()
-	const { push } = useRouter()
+	const { push, replace } = useRouter()
+	const { status } = useSession()
+	const { showMessage } = useShowDataStore()
 
 	useEffect(() => {
+		if (status === 'loading') return
+
+		if (status === 'authenticated') {
+			showMessage(REFERRAL_BLOCKED_MESSAGE, 'error')
+			replace('/')
+			return
+		}
+
 		localStorage.setItem('referral', email)
 		dispatch(addReferral(email))
 		push('/register')
-	}, [])
+	}, [status, email, dispatch, push, replace, showMessage])
 
 	return (
 		<Box sx={{ width: '100vw', height: '100vh', background: '#4b4b4b', position: 'relative' }}>