1 files changed, 7 insertions, 1 deletions
diff --git a/geldschieberbot.py b/geldschieberbot.py
index 44327e1..a2c5186 100644
--- a/geldschieberbot.py
+++ b/geldschieberbot.py
@@ -207,11 +207,17 @@ def register(sender, args, msg):
         return None, f'not in form "{args[0]} name"'
     name = args[1]
 
+    try:
+        to_cent(name)
+        return None, "pure numerical names are not allowed"
+    except:
+        pass
+
     if name in name2num:
         return None, f"{name} already registered"
 
     if sender in num2name:
-        return None,"you are already registered"
+        return None, "you are already registered"
 
     num2name[sender] = name
     name2num[name] = sender