orange drop line

So Comcast installed a white cable line from a box to my house and I was told it would be buried.  After almost 2 months and some complaining, two guys came out and removed the white cable and replaced it with an orange one.  They buried it maybe and inch or two in the ground.  Is that the final burial of the line?  I hope not considering it's only buried an inch or two.  Please advise.