Yeah Ive tried both microfilters the other way around and the sky box goes into a double adapter with the phone and then into the microfilter at both boxes. Ive checked the microfilters and they are fine and the phone works ok without disconnecting the internet but when I put the phone back on the receiver the connection drops after a few seconds. If I leave the receiver off I can be on the internet for hours without a problem.
In view of the fact that you will not accept any of the suggestions made here I doubt if you will get any more, however, one last suggestion. Unplug your phone line and if you ever get a bill for the full fee,which is doubtful, pay it and then you can do what you like with your connection.