diff --git a/core/services/WebServiceApiService.py b/core/services/WebServiceApiService.py
index 94bd4b0..c1e7583 100644
--- a/core/services/WebServiceApiService.py
+++ b/core/services/WebServiceApiService.py
@@ -89,11 +89,9 @@ class WebServiceApiService:
     @staticmethod
     def get_subscription(billing_code: str, proxies: Optional[dict] = None):
 
-        if billing_code is not None:
-
-            billing_code = billing_code.replace('-', '').upper()
-            billing_code_fragments = re.findall('....?', billing_code)
-            billing_code = '-'.join(billing_code_fragments)
+        billing_code = billing_code.replace('-', '').upper()
+        billing_code_fragments = re.findall('....?', billing_code)
+        billing_code = '-'.join(billing_code_fragments)
 
         response = WebServiceApiService.__get('/subscriptions/current', billing_code, proxies)