diff --git a/native/account/registration/existing-ethereum-account.react.js b/native/account/registration/existing-ethereum-account.react.js
index 2050b52d8..707af41af 100644
--- a/native/account/registration/existing-ethereum-account.react.js
+++ b/native/account/registration/existing-ethereum-account.react.js
@@ -1,145 +1,166 @@
 // @flow
 
 import * as React from 'react';
 import { Text, View } from 'react-native';
 
 import { setDataLoadedActionType } from 'lib/actions/client-db-store-actions.js';
 import { siweAuthActionTypes } from 'lib/actions/siwe-actions.js';
 import { useENSName } from 'lib/hooks/ens-cache.js';
 import { createLoadingStatusSelector } from 'lib/selectors/loading-selectors.js';
 import type { SIWEResult } from 'lib/types/siwe-types.js';
 import { useDispatch } from 'lib/utils/redux-utils.js';
+import { usingCommServicesAccessToken } from 'lib/utils/services-utils.js';
 
 import RegistrationButtonContainer from './registration-button-container.react.js';
 import RegistrationButton from './registration-button.react.js';
 import RegistrationContainer from './registration-container.react.js';
 import RegistrationContentContainer from './registration-content-container.react.js';
 import type { RegistrationNavigationProp } from './registration-navigator.react.js';
 import type { NavigationRoute } from '../../navigation/route-names.js';
 import { useSelector } from '../../redux/redux-utils.js';
 import { useStyles } from '../../themes/colors.js';
 import { UnknownErrorAlertDetails } from '../../utils/alert-messages.js';
 import Alert from '../../utils/alert.js';
-import { useLegacySIWEServerCall } from '../siwe-hooks.js';
+import {
+  useIdentityWalletLogInCall,
+  useLegacySIWEServerCall,
+} from '../siwe-hooks.js';
 
 const siweAuthLoadingStatusSelector =
   createLoadingStatusSelector(siweAuthActionTypes);
 
 export type ExistingEthereumAccountParams = SIWEResult;
 
 type Props = {
   +navigation: RegistrationNavigationProp<'ExistingEthereumAccount'>,
   +route: NavigationRoute<'ExistingEthereumAccount'>,
 };
 function ExistingEthereumAccount(props: Props): React.Node {
   const legacySiweServerCall = useLegacySIWEServerCall();
+  const identityWalletLogInCall = useIdentityWalletLogInCall();
 
   const { params } = props.route;
   const dispatch = useDispatch();
   const onProceedToLogIn = React.useCallback(async () => {
-    try {
-      await legacySiweServerCall({ ...params, doNotRegister: true });
-    } catch (e) {
-      Alert.alert(
-        UnknownErrorAlertDetails.title,
-        UnknownErrorAlertDetails.message,
-        [{ text: 'OK' }],
-        {
-          cancelable: false,
+    if (usingCommServicesAccessToken) {
+      try {
+        await identityWalletLogInCall(params);
+      } catch (e) {
+        Alert.alert(
+          UnknownErrorAlertDetails.title,
+          UnknownErrorAlertDetails.message,
+          [{ text: 'OK' }],
+          {
+            cancelable: false,
+          },
+        );
+        throw e;
+      }
+    } else {
+      try {
+        await legacySiweServerCall({ ...params, doNotRegister: true });
+      } catch (e) {
+        Alert.alert(
+          UnknownErrorAlertDetails.title,
+          UnknownErrorAlertDetails.message,
+          [{ text: 'OK' }],
+          {
+            cancelable: false,
+          },
+        );
+        throw e;
+      }
+      dispatch({
+        type: setDataLoadedActionType,
+        payload: {
+          dataLoaded: true,
         },
-      );
-      throw e;
+      });
     }
-    dispatch({
-      type: setDataLoadedActionType,
-      payload: {
-        dataLoaded: true,
-      },
-    });
-  }, [legacySiweServerCall, params, dispatch]);
+  }, [legacySiweServerCall, identityWalletLogInCall, params, dispatch]);
 
   const siweAuthCallLoading = useSelector(
     state => siweAuthLoadingStatusSelector(state) === 'loading',
   );
 
   const { address } = params;
   const walletIdentifier = useENSName(address);
   const walletIdentifierTitle =
     walletIdentifier === address ? 'Ethereum wallet' : 'ENS name';
 
   const { goBack } = props.navigation;
   const styles = useStyles(unboundStyles);
   return (
     <RegistrationContainer>
       <RegistrationContentContainer>
         <Text style={styles.header}>Account already exists for wallet</Text>
         <Text style={styles.body}>
           You can proceed to log in with this wallet, or go back and use a
           different wallet.
         </Text>
         <View style={styles.walletTile}>
           <Text style={styles.walletIdentifierTitleText}>
             {walletIdentifierTitle}
           </Text>
           <View style={styles.walletIdentifier}>
             <Text style={styles.walletIdentifierText} numberOfLines={1}>
               {walletIdentifier}
             </Text>
           </View>
         </View>
       </RegistrationContentContainer>
       <RegistrationButtonContainer>
         <RegistrationButton
           onPress={onProceedToLogIn}
           label="Log in to account"
           variant={siweAuthCallLoading ? 'loading' : 'enabled'}
         />
         <RegistrationButton
           onPress={goBack}
           label="Use a different wallet"
           variant="outline"
         />
       </RegistrationButtonContainer>
     </RegistrationContainer>
   );
 }
 
 const unboundStyles = {
   header: {
     fontSize: 24,
     color: 'panelForegroundLabel',
     paddingBottom: 16,
   },
   body: {
     fontFamily: 'Arial',
     fontSize: 15,
     lineHeight: 20,
     color: 'panelForegroundSecondaryLabel',
     paddingBottom: 40,
   },
   walletTile: {
     backgroundColor: 'panelForeground',
     borderRadius: 8,
     padding: 24,
     alignItems: 'center',
   },
   walletIdentifierTitleText: {
     fontSize: 17,
     color: 'panelForegroundLabel',
     textAlign: 'center',
   },
   walletIdentifier: {
     backgroundColor: 'panelSecondaryForeground',
     paddingVertical: 8,
     paddingHorizontal: 24,
     borderRadius: 56,
     marginTop: 8,
     alignItems: 'center',
   },
   walletIdentifierText: {
     fontSize: 15,
     color: 'panelForegroundLabel',
   },
 };
 
 export default ExistingEthereumAccount;