Just recieved some of my ssi backpay still confussed. My ssi backpay is more than my ssd backpay so how do the offset work PLEASE EXPLAIN!!! Their holding ssd backpay to pay back ssi. If their only sending so much every six mths than how do they payback something I haven't recieved yet are they going to hold the ssd until all the ssi is paid to me over a year later.