I had a garden fence put in recently but looks like they did a crap job - it seems a bit wobbly even though it's meant to have been concreted in (maybe the concrete hasn't dried yet? however it was put in 3 days ago and it hasn't rained since then so I'm not sure about that). I doubt I can get the people who fitted it to come and sort it out, so is it worth me digging around the fence posts and trying to put more concrete in? Or maybe trying to reinforce the posts somehow? Any advice very much appreciated.