First tell us more details, how many submissions you did and in what time frame, how many per day, etc...?
Read my first post...
Directory Submission is long term process, you cant expect results in a few days.
I'm still getting my approval messages 3.5 months after submissions.
Also acceptance rate really depends on few factors:
- Quality of the websites you submiting
- Title
- Choosen category
- Directory admin
- etc.