AVG Ultimate - saying my licence number is not valid

Hello K,
We understand how something like this can really try your patience.
To get this issue fixed, we request you to run AVG remover tool in your pc and then install AVG Ultimate back in your pc to get your issue fixed.
To run AVG remover tool for AVG Antivirus please follow the below steps :
Please click on the below link to download remover tool
http://aa-download.avg.com/filedir/util/AVG_Remover.exe
Accept the license agreement and then choose AVG Product and remove it.

Suddenly today i have received an error message from AVG when i boot up my computer saying it does not recognise my licence number, but i have AVG Ultimate which does not operate with a licence number.  When i try to go to AVG protection it asks me to enter my licence number or close AVG.  I tried to uninstall AVG and it won't uninstall.  I get an error message saying uninstall has failed.  I tried to go to the support online and have a chat online detailing my problem but nothing is going through and the online chat won't come up.  Please can someone help?

NOTE: Once the AVG Remover Tool has done with its process. Please go to the drive where you installed this tool and look for a folder named as "AVG Remover" and I request you to delete it manually.
To install AVG Ultimate in your pc please click on the following link http://files-download.avg.com/inst/mp/AVG_Ultimate_761.exe and install the file. To activate your AVG Ultimate please have a look at the following article http://avgclick.me/ActivateZen .
Please feel free to contact us for any further assistance. Thank you.

Hello K,
We understand how something like this can really try your patience.
To get this issue fixed, we request you to run AVG remover tool in your pc and then install AVG Ultimate back in your pc to get your issue fixed.
To run AVG remover tool for AVG Antivirus please follow the below steps :
Please click on the below link to download remover tool
http://aa-download.avg.com/filedir/util/AVG_Remover.exe
Accept the license agreement and then choose AVG Product and remove it.