TM Unifi - Speed Promises Failed

Here is the speed that I have subscribed with TM Unifi that I am paying for - 500 Mbps

Here is the result of SpeedTests via TM Unifi official SpeedTest links:

Link to Result 1  |  Link to Result 2

Here is the result of SpeedTests via Ookla SpeedTest:

Link to Result

Summary:

Speed commitment by TM Unifi is 500 Mbps
Real download speed ~ 36 Mbps - only ~7% of commitment - just 7% ??????

Real upload speed ~ 100 Mbps - only 20% of commitment

All SpeedTests were conducted during the afternoon of 12th May 2019 Sunday

Connected to 5GHz TP-Link Wifi-Router provided by TM Unifi - only a meter away