Income tax refund for fy 2011-12

Pls anybody reply....

I have already received my refudn 2 months back.

yes, some of our clients had received there refunds and salaried persons are getting quickly then others

In my view only salaried persons receiving refunds.  ITR-4 is pending still.

I had insurance commission income. I filled return in itr-2 and claimed refund. But somebody told me that I should have filled return in itr-4. Is that the cause that I had not received my refund even though I filled return 4 months ago, online. Pls reply that what should I do now in order to receive refund .