Tizen Developers

hi! i participated in tizen app challenge and submitted 36 odd application out of which 31 were approved but didn't recevied payment what was promised earlier. Later i was told that i will receive $1250+$300 but only receive $834 , which mean i am denying what i deserve to get .Please look at my matter as i didn't got positive response from appbackr and was asked to be satisfied on what i got.

thanks