Someone got into my computer

I don't know what happened but I could nget onto my AVG and I called support and ended up with someone on my computer. I talked to someone and they said that someone had got into my account and something about my IP address. When I called that number back though there was no answer. What happened? Do I need to get rid of AVG? Why did the person who had remote access to my computer install Malwarebytes anti-malware and turn off all of the AVG protection and hid the problems permentely? What happened? I bought AVG because I wanted my computer to be safe and I think AVG just messed with me.

Hello Bayly,

Upon checking your account I don't  see any record of previous contact with the any of our technical support team . In this case, to understand your issue and assist you better. I would request you to contact our AVG tech support team by clicking the link: http://avgread.me/1L0qSJk
Please feel free to get back to us for any issues with AVG.
Thank you.

Hello Bayly,

Upon checking your account I don't  see any record of previous contact with the any of our technical support team . In this case, to understand your issue and assist you better. I would request you to contact our AVG tech support team by clicking the link: http://avgread.me/1L0qSJk
Please feel free to get back to us for any issues with AVG.
Thank you.