Avg anti tracking trial

I had taken the Anti Tracking Trial earlier in the year.  I cancelled the Trial. Now I am being pestered up to 20 times per day with 'pop ups' suggesting I take up the offer again. 
How can I get AVG to stop flooding my screen with information about new products and expired products which I DON'T WANT?   
Working on something very important on my PC and up flashes two or three of their 'black screens' with suggestions about upgrades or reminding me that my "AVG Tracker has expired". 
There is no facility to contact them via e mail.  I tried phoning  - you need at least half an hour to waste, waiting for a response! 

They sent me a link 

https://support.avg.com/SupportArticleView?l=en&urlname=AVG-Antivirus-popup-notifications

THIS DOES NOT WORK!!  

I am so fed up with the service given by AVG and they are unreachable.  A hopeless service to their customers.    Please respond to me to my e mail address. Thank you

Hello Ann,
Thank you for contacting AVG support community.
I apologize for the inconvience caused to you.
I have sent an email regarding this.
Please check and revert back to us.
Thank you and keep us updated.

Hello Ann,
Thank you for contacting AVG support community.
I apologize for the inconvience caused to you.
I have sent an email regarding this.
Please check and revert back to us.
Thank you and keep us updated.