Connectivity issues. Not happy with product

I've been having endless connectivity issues for the past 2 weeks and this has made it difficult for me to work from home etc. If it's not slow connection than it is the lack thereof. There are many times where it is connected without internet. I have contacted the call center and they troubleshooted by changing the signal tower. I have also moved the router to different positions and rebooted it quite a few times. As a paying customer, I am not happy with the product at the moment. Please assist