The cron job is only at block 6759 paid out so far and the current system block is 10876. I have confirmed coins so when the job catches up you should also see your coins.
Do you know if your coins per day calc is approximately correct or not?
With the current data they are correct. However, it will need time for the difficulty to adjust (the target is 1 coin every 10 minutes)
Why is there som many rejected share with this coin?
Round Shares
Est. Shares 512 (done: 10712.3%)
Pool Valid 54,847
Your Valid 788
Pool Invalid 14,680 (21.11%)
Your Invalid 405 (33.95%)
This is also related with the difficulty, as currently a new block is found every few seconds.