diff --git a/ASFConnector.py b/ASFConnector.py
index 205cbb9..45944c2 100755
--- a/ASFConnector.py
+++ b/ASFConnector.py
@@ -74,7 +74,7 @@ def get_bot_info(self, bot):
     def bot_redeem(self, bot, keys):
         """ Redeems cd-keys on given bot. """
         LOG.debug('bot_redeem: bot {}, keys {}'.format(bot, keys))
-        assert type(keys) is set or type(keys) is str
+        assert isinstance(keys, (list, set, str))
         resource = '/Bot/' + bot + '/Redeem'
         if type(keys) is str:
             payload_keys = [keys]
diff --git a/bot.py b/bot.py
index a8ee1cc..537d7fb 100755
--- a/bot.py
+++ b/bot.py
@@ -11,7 +11,7 @@
 from ASFConnector import ASFConnector
 
 
-_REGEX_CDKEY = re.compile(r'\w{5}-\w{5}-\w{5}')
+_REGEX_CDKEY = re.compile(r"\b[A-Z0-9]{5}-[A-Z0-9]{5}-[A-Z0-9]{5}\b", re.IGNORECASE)
 _REGEX_COMMAND_BOT_ARGS = r'^[/!]\w+\s*(?P<bot>\w+)?\s+(?P<arg>.*)'
 _REGEX_COMMAND_RAW = r'^[/!](?P<input>(?P<command>\w+).*)'
 _REGEX_COMMAND = r'^[/!]\w+\s*(?P<bot>\w+)?'
@@ -139,11 +139,12 @@ def status_command(message):
         response = asf_connector.get_bot_info(bot_arg)
         LOG.info("Response to status message: %s", str(response))
         reply_to(message, "<code>" + str(response) + "</code>")
-    except requests.HTTPError as http_error:
+    except requests.exceptions.HTTPError as http_error:
         LOG.exception(http_error)
         response = http_error.response
         status_code = response.status_code
-    except requests.ConnectionError as connection_error:
+        reply_to(message, "ASF HTTP error: <code>{}</code>".format(status_code))
+    except requests.exceptions.ConnectionError as connection_error:
         LOG.exception(connection_error)
         error_message = str(connection_error.args[0].reason.args[0]).split('>:')[1]
         error_response = "Couldn't reach the ASF instance: <code>{}</code>".format(error_message)
@@ -153,18 +154,30 @@ def status_command(message):
         LOG.exception(ex)
 
 
-@bot.message_handler(commands=['redeem'])
+@bot.message_handler(func=is_user_message, commands=['redeem'])
 def redeem_command(message):
     LOG.debug("Received redeem message: %s", str(message))
-    match = re.search(_REGEX_COMMAND_BOT_ARGS, message.text)
+    match = re.search(_REGEX_COMMAND_BOT_ARGS, message.text, re.DOTALL)
     if not match:
         reply_to(message, "Missing arguments. Usage:\n<code>/redeem &lt;bot&gt; &lt;keys&gt;</code>")
         return
     bots = match.group('bot') if match.group('bot') else 'ASF'
-    keys = match.group('arg')
-    response = asf_connector.bot_redeem(bots, keys)
-    LOG.info("Response to redeem message: %s", str(response))
-    reply_to(message, "<code>" + str(response) + "</code>")
+    raw_keys = match.group('arg')
+    keys = _normalize_keys(raw_keys)
+    if not keys:
+        reply_to(message, "No valid keys found.")
+        return
+    try:
+        response = asf_connector.bot_redeem(bots, keys)
+        LOG.info("Response to redeem message: %s", str(response))
+        reply_to(message, "<code>" + str(response) + "</code>")
+    except requests.exceptions.HTTPError as ex:
+        status_code = ex.response.status_code if ex.response is not None else "?"
+        LOG.error(ex)
+        reply_to(message, 'Redeem failed. ASF status code: <code>{}</code>'.format(status_code))
+    except Exception as ex:
+        LOG.exception("Redeem unexpected error")
+        reply_to(message, 'Redeem failed: <code>{}</code>'.format(str(ex)))
 
 
 @bot.message_handler(func=is_user_message, regexp=_REGEX_COMMAND_RAW)
@@ -181,7 +194,7 @@ def command_handler(message):
     try:
         asf_response = asf_connector.send_command(command)
         LOG.info("Command: {}. Response: {}".format(message.text, asf_response))
-        response = replace_html_entities(asf_response)
+        response = replace_html_entities(str(asf_response))
     except requests.exceptions.HTTPError as ex:
         status_code = ex.response.status_code
         LOG.error(ex)
@@ -194,8 +207,8 @@ def check_for_cdkeys(message):
     """
     Sync handler for the rest of the messages. It searchs for cdkeys and redeems them.
     """
-    cdkeys = set(_REGEX_CDKEY.findall(message.text))
-    if len(cdkeys) > 0:
+    cdkeys = _normalize_keys(message.text)
+    if cdkeys:
         response = asf_connector.bot_redeem('ASF', cdkeys)
         reply_to(message, "<code>" + str(response) + "</code>")
     else:
@@ -227,3 +240,18 @@ def replace_html_entities(message: str):
 except Exception as e:
     LOG.exception(e)
 
+def _normalize_keys(text_or_iterable):
+    """Return a list of unique, uppercased CD-keys (5-5-5 format) from a string or iterable."""
+    if not text_or_iterable:
+        return []
+    if isinstance(text_or_iterable, str):
+        found = _REGEX_CDKEY.findall(text_or_iterable.upper())
+        if found:
+            # preserve order and drop duplicates
+            return list(dict.fromkeys(found))
+        # Fallback split on common separators
+        parts = re.split(r"[\s,;]+", text_or_iterable.strip())
+        parts = [p.upper() for p in parts if p]
+        return list(dict.fromkeys(parts))
+    # Iterable case
+    return list(dict.fromkeys([str(x).upper().strip() for x in text_or_iterable if str(x).strip()]))