I'm assuming the OP did a dish mover, which in that case we do not ask that you take the dish with you (I understand the apt complex made you take them), or return the LNB's.
The only time we ask for the LNB back is when services are canceled (LNBs, remotes, and receivers need to come back). So if you canceled, and started new service at a new location, the LNBs would need to come back.
Otherwise, if they are sold, put in the trash, used as a sled, etc., we won't charge you for not returning them.