150 Mbps Connect Internet plan sunsetted. Replaced by a false promise of 300 Mbps

I was perfectly happy with my Connect Internet plan that provided me with 150 Mbps Internet speed. Without notice, Xfinity did away with the plan. A 300 Mbps Internet speed plan replaced the Connect Internet plan at a higher price when my special Connect Internet promotion ended. Speeds of 300 Mbps are fiction. I ran speed tests on all my devices, including those connected directly to my gateway via an Ethernet cable. I am lucky to reach the 90 Mbps mark download speed. Anyone else expecting 300 Mbps Internet speed but receiving less than they are paying for?