diff --git a/package.json b/package.json
index b552770..4399845 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@orionprotocol/sdk", 
-  "version": "0.15.27-rc.2",
+  "version": "0.15.27-rc.3",
   "description": "Orion Protocol SDK",
   "main": "./lib/esm/index.js",
   "module": "./lib/esm/index.js",
diff --git a/src/OrionUnit/index.ts b/src/OrionUnit/index.ts
index e305cf1..b991580 100644
--- a/src/OrionUnit/index.ts
+++ b/src/OrionUnit/index.ts
@@ -145,7 +145,7 @@ export default class OrionUnit {
     this.orionAnalytics = new OrionAnalytics(orionAnalyticsUrl);
     this.exchange = new Exchange(this);
     this.farmingManager = new FarmingManager(this);
-    this.referralSystem = new ReferralSystem(`${options?.api ?? customApi}/referral-api`);
+    this.referralSystem = new ReferralSystem(options?.api ?? customApi, env);
   }
 
   get siblings() {
diff --git a/src/services/ReferralSystem/index.ts b/src/services/ReferralSystem/index.ts
index 9f8f8be..4216e52 100644
--- a/src/services/ReferralSystem/index.ts
+++ b/src/services/ReferralSystem/index.ts
@@ -19,8 +19,8 @@ type SignatureType = {
 class ReferralSystem {
   private apiUrl: string;
 
-  constructor(apiUrl: string) {
-    this.apiUrl = apiUrl;
+  constructor(apiUrl: string, env: string) {
+    this.apiUrl = ReferralSystem.getActualApiUrl(apiUrl, env);
 
     this.getLink = this.getLink.bind(this);
     this.getSubscribersList = this.getSubscribersList.bind(this);
@@ -29,6 +29,19 @@ class ReferralSystem {
     this.getMyReferral = this.getMyReferral.bind(this);
   }
 
+  // ресурсы реферальной системы в тестинг окружении имеют вид
+  // testing.orionprotocol.io/referral-api вместо обычного
+  // testing.orionprotocol.io/bsc-testnet/referral-api, поэтому лишняя часть вырезается
+  static getActualApiUrl = (apiUrl: string, env: string) => {
+    if (env !== 'testing') {
+      return `${apiUrl}/referral-api`;
+    }
+
+    const { protocol, hostname } = new URL(apiUrl);
+
+    return `${protocol}//${hostname}/referral-api`;
+  };
+
   getLink = (refererAddress: string) => fetchWithValidation(`${this.apiUrl}/referer/view/link`, linkSchema, {
     headers: {
       'referer-address': refererAddress,