Terrible experience! We had issues with crane flie...

Terrible experience! We had issues with crane flies in our garden - basically there were thousands. I thought that problem was my garden so I called the pest control - I didn't call Network Homes as every time they take ages to reply or to provide a service and I couldn't even open a window that those flyers were indoor. Anyways, post control came and they said (I got their report) that the problem it wasn't in my garden but next to it where there are very long vegetation - which they should be treated and cut regularly but apparently they don't do it and I pay my service charge for nothing. Obviously I had to pay for their service and I called network homes and I spoke to the responsible of the maintenance and he said that the vegetation would be traced (after 2 months the vegetation is still growing) and he doesn't know whether they can give compensation for the pest control. Really embarrassing!