sounds about right.

You should be able to adjust the 'Z-offset' in your slicer. Just lower it till the filament starts to stick.

I use this quite a lot in simplify 3d as a lazy fix to avoid bed levelling. You can do it in cura too - but for that you need to add the gcode manually to the 'start up' script.
No clue how you do it in other slicers. But there is usually a way.