avast anti thief

hi, friends and respected avast users , few months back i was install avast antithief security for my andriod samsung gt-s7500 , and i activated my avast anti thief protection that day but in few days i came to know that it will send you sms each and every time when you will change your sim card , so i was decided to not to use this service anymore and as my habit is i always delete the app from screen so it will atomatically uninstalled from device ;D ;D but this is not the same case for avast , after delete and uninstalling the avast it is still sending the sms which are unwanted >:( >:( , and more over this sms cost me so much because i reciving tham 5 or 10 per day so please help how can i stop this non sense please help me

thanks if you read my post and to post your thoughts and answer i am sending you a warm welcome please give replies and please tell me how to stop this kind of sms :‘( :’( :cry:

Re-install the app and uninstall it from the uninstall menu in the main Avast-application (settings → Uninstall Anti Theft).