I am unable to send sms to customer care (121) from my Motorola xt800 phone. Please help

i send the mail to Airtel asking for call details.
see the reply
Dear
Customer,
This is in reference to your email regarding itemized call details for your airtel mobile number
97793****9
.
Regarding incoming call details:
At the outset, we understand the inconvenience you may face and assure you of our best services. To ensure customer's privacy, we would not be able to share the details or divulge any information of the calling party.
Regarding outgoing call details:
We regret you to inform that,we are unable to provide current month call details from our end as there is no provision for the same.
To get the last 6 months itemized outgoing call details/messages for your mobile, we request you to send SMS to 121 in the below mentioned format. Please note the itemized bill will be generated for a calendar month (not as per your billing cycle).
By eBill: SMS EPREBILL <month> <email id> to 121 (Toll Free). Month format should be MMM e.g. JAN. ebill will be sent within 6 hrs.
By Paper Bill: SMS PPREBILL <month> <billing address> to 121 (Toll Free). Month format should be MMM e.g. JAN. Paper bill will be delivered within 7 working days.
Thank you for reaching out to us. Delighted to assist you.

https://youtu.be/yqptqtHYfjk

TracFone International Texting Revoked

• Certain mobile phone upgrades affect the ability of TracFone customers to send text messages internationally. Some of the phones identified to have had this SMS issue are the LG290C, LG420G and Samsung T301G. The problem is present when an error message appears on your TracFone device after you send a text message to an international number that says, "Check SMS Restrictions."
  

Read more : http://www.ehow.com/info_8634048_trac-phone-problems.html Did you upgrade from the 420G to 440G? Certain mobile phone upgrades affect the ability of TracFone customers to send text messages internationally. Some of the phones identified to have had this SMS issue are the LG290C, LG420G and the Samsung T301G. The problem is present when an error message appears on your TracFone device after you send a text message to am international number that says, "Check SMS Restrictions"
Or your phone isn't capable of texting internationally.If it's supposed to then you need to call Tracfone customer service and tell them.

As your using samsung galaxy your mobile is just fine and it have no problem but your message services center number has changed.you just dial up your customer care number and talk with the customer care person after that they will give you the message services center number after changing that number you can switch off your mobile for a while after that you can switch on your phone and then start sending the message from your number to any of your friends number. var geo_Partner = '687b82b2-54e8-44dc-93c0-87c73f39cdb0'; var geo_isCG = true;

* Just SMS "ALL" to 121.
* On sending the SMS, you will receive the confirmation SMS.
Note:
* If you do not receive the Over The Air settings even after 24 hrs, Please call Our Customer Care In Your Circle
Charges:
* SMS sent to 121 will be Free.
* Browsing charges 10paisa/10 Kb.

You are facing this problem b'coz of your service provider.This problem sometimes comes due to problem in the network.i also got this type of error whenever i tried to send any msgs but after sometime it has been automatically solved.so please be patience your problem will be solved automatically or you can contact the customer care of your service provider.thanks you

for sending text messages :
1. call to your network operator customer care
2. request the message center number...
3.note it down
4. go to message settings>message center number
5. insert the number which is noted by you and save it
this solves your messaging problem ...
Good luck

HI FRIEND..
call ur customer care and ask sms centre number..and go message settings>sim message centre,,,change it thats all there is no other problem,,,

THANK U PLEASE RATE IT...

I had the same problem and came to this site for help but the solutions didn't solve the problem of "cannot send text message" on htc touch hd. All service numbers correct. Went to START/SETTINGS/CONNECTIONS/ADVANCED NETWORK/SMS SERVICE then changed from "gprs" to "gprs preferred". Double checked and had reverted to "GSM" but sms now works - finally!!! Hope this helps.

tmuncey hello,

Sometimes because of a phone bug or a SIM error, the "Service Centre" for SMS messages is changed.
Please call your cellular Service Provider, and ask for their SMS Service Centre settings.
Then, go to Messages > Settings > Text Message > Service Centre.
Make sure the number you were given by the Service Provider matches the one written there.
If not, please changed to the one given to you by the Service Provider.

am unable to send SMS messages? As a set limitation to the phone's design, if the SMS Inbox is consumed, the phone's alternative is to send as an MMS.
If a customer is calling and their phone is sending SMS messages as MMS messages, please advise them that they may have an excessive amount of SMS messages in their inbox. Advise them that deleting some or all of these messages should correct the problem.
To delete messages:

1. Press Menu
2. Scroll to and Select Messaging
3. Press Options
4. Scroll to and Select Cleanup Messages
5. Scroll to and Select All, or Inbox
6. Press Yes, to Delete Messages