I filed on the 29th last month, its been 3 weeks and I still have not gotten my refund. Yes it was approved. Why is it taking so long?

and I was supposed to get my refund in today the 19 at the latest, on the Wheres my refund page it says its still processing, but no bars are shown, but when I look up my moms, it shows everything. Also my brother got his refund and he filed a couple days after me.