If it continues you may want to request a re-eval. When I worked on eval teams we would often tell parents to call in X months if their DC wasn't doing Y and Z at that point.
The difficulty IMO with recommending ways to work with her is that it depends on the origin of the issue, obviously. So we can give you ideas, but they may or may not be appropriate for her. That's where a professional can really be helpful, because they should be able to get a better idea of why her receptive language is a little behind.
Does she have a history of ear infections? Has she ever had her hearing checked? I'd probably call EI again and express your concerns-"it is like she doesn't hear me." and go from there. You may want to have private testing done, or private therapy if she doesn't end up qualifying.
I'd probably want her hearing checked, have her checked for fluid, etc. as a starting point since you are saying it is as if she doesn't hear you.
If she doesn't point, does she look toward whatever you tell her? Like if you say "where is daddy?" would she turn her head toward him even if she doesn't point? It doesn't sound like she's doing that but just confirming.
Mama to DS-2004
DD-2006
and a new addition-ds born march 2010