Defective manhole cover, Near tile shop on Balls Pond Road

This manhole cover has been a problem for over six months now, since the road was resurfaced. Someone comes along periodically and dumps tarmac on top then a few weeks later it's worn away again and every eastbound car loudly bangs over it, day and night. The surrounding road surface is beginning to crack from constant vibration, cyclists swerve to avoid it, it needs fixing properly. Thames Water fixed their adjacent ones but claim this one is not on their plans.