Circumcision

So my son got his circumcision done however I don’t like how it looks. The way it’s cut it looks as if he has a bump now on his penis because they left skin on it and their telling me as time goes on and it gets “bigger” that it’ll go away and stretch out.... has this happened to anyone else? I don’t want to get him circumcised again being that their saying it’s fine but I also don’t want it to look as if he has a bump due to them not cutting enough

*hes 3 months now, got it done when he was 3 weeks old*