I bought a container of Miracle Grow Patch Up which was advertised on TV for dealing with circles in the grass and holes caused by our dog digging in the garden. It's quite expensive for what you get and consists of grass seeds,lawn food and a compost that expands quite a lot when wet. I filled in the holes but the compost soon ran out and I then completed the job using a similar preparation that I had,had to make.
Immediately after I had finished the job it rained quite heavily so I was pleased with that but two hours later when I was back in the garden it looked like I had mole hills everywhere.
The Miracle Grow treatment had expanded so much those holes had now become hills! So then I had to go around every one and stand on them to flatten them.
I looked at the lawn today and am pleased to say that the seeds have started to grow.