Thanks to everyone for the answers and saved me from sending the depot to a service that does not deserve it. 0.0000004 BTC is unsendable sum. These are some kind of ridiculous trolls not a service. (Very respectable top site among crypto entusiasts. And these trolls own a top crypto site and don't even know that it's technically impossible to send such dust which speaks about the extreme incompetence of these schoolboys)
We have a "
Reputation" board here in the forum, link:
/index.php?board=129.0If you think that the service deserves a minor stain on their reputation, you may post a new topic in that board including the full detail of the situation.
People there are usually good on judging whether you claims are valid or not.
(
or if you post the service's name here, that could shed a light on what's actually happening)
But take note that such issue isn't qualified for a negative rating in case they have a Bitcointalk profile.