diff --git a/src/pages/form/form.tsx b/src/pages/form/form.tsx
index 00bbbce7f..a6506e178 100644
--- a/src/pages/form/form.tsx
+++ b/src/pages/form/form.tsx
@@ -152,16 +152,17 @@ const Participation = () => {
 
   const handleSubmit = async (event: React.FormEvent<HTMLFormElement>) => {
     event.preventDefault();
-
+    if (!canSubmit) {
+      return;
+    }
     try {
       await postParticipation(form.values);
+      router.push('/form/success');
     } catch (error) {
       handleSubmitError(error);
 
       return;
     }
-
-    router.push('/form/success');
   };
 
   const canSubmit = !form.nonFieldError
@@ -174,6 +175,15 @@ const Participation = () => {
     );
   }
 
+  const handleInput = (
+    input: keyof ParticipationFormFields,
+    value: ParticipationFormFields[keyof ParticipationFormFields]
+  ) => {
+    return input === 'phoneNumber'
+      ? form.setFieldValue(input, '+7' + value)
+      : form.setFieldValue(input, value);
+  };
+
   return (
     <AppLayout>
       <SEO
@@ -194,7 +204,7 @@ const Participation = () => {
                       value={form.values.firstName}
                       placeholder="Имя"
                       errorText={form.touched.firstName ? form.errors.firstName : ''}
-                      onChange={(value) => form.setFieldValue('firstName', value)}
+                      onChange={(value) => handleInput('firstName', value)}
                     />
                   </FormField>
                 </Form.Field>
@@ -207,7 +217,7 @@ const Participation = () => {
                       value={form.values.lastName}
                       placeholder="Фамилия"
                       errorText={form.touched.lastName ? form.errors.lastName : ''}
-                      onChange={(value) => form.setFieldValue('lastName', value)}
+                      onChange={(value) => handleInput('lastName', value)}
                     />
                   </FormField>
                 </Form.Field>
@@ -221,7 +231,7 @@ const Participation = () => {
                       placeholder="Год рождения"
                       mask="9999"
                       errorText={form.touched.birthYear ? form.errors.birthYear : ''}
-                      onChange={(value) => form.setFieldValue('birthYear', value)}
+                      onChange={(value) => handleInput('birthYear', value)}
                     />
                   </FormField>
                 </Form.Field>
@@ -234,7 +244,7 @@ const Participation = () => {
                       value={form.values.city}
                       placeholder="Город проживания"
                       errorText={form.touched.city ? form.errors.city : ''}
-                      onChange={(value) => form.setFieldValue('city', value)}
+                      onChange={(value) => handleInput('city', value)}
                     />
                   </FormField>
                 </Form.Field>
@@ -246,6 +256,7 @@ const Participation = () => {
                     <PhoneNumberInput
                       value={form.values.phoneNumber}
                       errorText={form.touched.phoneNumber ? form.errors.phoneNumber : ''}
+                      onChange={(value) => handleInput('phoneNumber', value)}
                     />
                   </FormField>
                 </Form.Field>
@@ -259,7 +270,7 @@ const Participation = () => {
                       value={form.values.email}
                       placeholder="E-mail"
                       errorText={form.touched.email ? form.errors.email : ''}
-                      onChange={(value) => form.setFieldValue('email', value)}
+                      onChange={(value) => handleInput('email', value)}
                     />
                   </FormField>
                 </Form.Field>
@@ -274,7 +285,7 @@ const Participation = () => {
                       value={form.values.title}
                       placeholder="Название"
                       errorText={form.touched.title ? form.errors.title : ''}
-                      onChange={(value) => form.setFieldValue('title', value)}
+                      onChange={(value) => handleInput('title', value)}
                     />
                   </FormField>
                 </Form.Field>
@@ -288,7 +299,7 @@ const Participation = () => {
                       placeholder="Год написания"
                       mask="9999"
                       errorText={form.touched.year ? form.errors.year : ''}
-                      onChange={(value) => form.setFieldValue('year', value)}
+                      onChange={(value) => handleInput('year', value)}
                     />
                   </FormField>
                 </Form.Field>
@@ -301,7 +312,7 @@ const Participation = () => {
                       accept={ACCEPTABLE_FILE_TYPES}
                       fileName={form.values.file?.name}
                       errorText={form.touched.file ? form.errors.file : ''}
-                      onChange={(value) => form.setFieldValue('file', value)}
+                      onChange={(value) => handleInput('file', value)}
                     />
                   </FormField>
                 </Form.Field>
diff --git a/src/services/fetcher/fetcher.ts b/src/services/fetcher/fetcher.ts
index f9ea19991..1d084d372 100644
--- a/src/services/fetcher/fetcher.ts
+++ b/src/services/fetcher/fetcher.ts
@@ -27,14 +27,16 @@ const fetchResource = (httpClient: typeof fetch) => async <T>(path: string, opti
 export const fetcher = fetchResource(fetch);
 
 async function handleResponse<T>(response: Response) {
+  let payload;
   try {
-    const payload = await response.json();
-    if (!response.ok) {
-      throw new HttpRequestError({ statusCode: response.status, payload });
-    }
-
-    return payload as T;
+    payload = await response.json();
   } catch (err) {
-    return err as T;
+    payload = {};
+  }
+
+  if (!response.ok) {
+    throw new HttpRequestError({ statusCode: response.status, payload });
   }
+
+  return payload as T;
 }