That doesn’t sound right at all. I’ve been getting everything scanned at fororiesel and the quality has been perfect. Do you think you could come off anon so I could find out some details, because your scans should be perfect as well.
I think the quality depends on a few things. If you camera is exposing properly scans at Fotoriesel are excellent but poor quality negs are hard to fix. I think their scanner does not cope well with profound under exposure (like shooting 100speed in a Holga on an overcast day). Also I have found less optimal results (ie garbage) with lomography branded film (my tumblr is almost 100% Fuji or Agfa 200) and challenging results with really contrasty monochrome. Also the monochrome I get back from Fotoriesel seems to have dust on it but don’t know if that’s me or them.