diff --git a/helpers/sendinblue.helper.js b/helpers/sendinblue.helper.js
index 2c489e0..bc6164e 100644
--- a/helpers/sendinblue.helper.js
+++ b/helpers/sendinblue.helper.js
@@ -51,6 +51,25 @@ function sendEmailTransactional(header, body) {
     });
 }
 
+function _existsMember(userEmail) {
+    const api = new SibApiV3Sdk.ContactsApi();
+
+    return new Promise(function (resolve, reject) {
+        console.debug('_existsMember:');
+        console.debug(userEmail);
+
+        api.getContactInfo(userEmail)
+            .then(function (data) {
+                console.debug('API called successfully. Returned data: ' + data);
+                resolve(data);
+            })
+            .catch(function (error) {
+                console.error(error);
+                reject(error);
+            });
+    });    
+}
+
 
 function _createMember(member) {
     const api = new SibApiV3Sdk.ContactsApi();
@@ -230,6 +249,10 @@ function deleteMemberByEmail(userEmail) {
     return _deleteMember(userEmail);
 }
 
+function getMemberByEmail(userEmail) {
+    return _existsMember(userEmail);
+
+}
 
 module.exports = {
     sendEmailTransactional,
@@ -237,6 +260,7 @@ module.exports = {
     addMemberToList,
     deleteMemberFromList,
     updateMemberByEmail,
-    deleteMemberByEmail
+    deleteMemberByEmail,
+    getMemberByEmail
 }