Tdy smart voucher not fully paid.

So I recently submitted a smart voucher. I payed $1126 for a flight to my leave en route, then to my tdy en route location, then to my next duty station(pcs) immediately. I submit my smart voucher etc and they only payed me $600 and then told me to adjust my itinerary dates in block 15a don’t understand because they’re the correct dates? They said they won’t process my tdy pay till it’s fixed Does anyone know what they’re saying? I also got notified my payment was completed but never made it to my personal account and it says “split payment” does that mean it payed to my gtc? I already payed it off prior to submitting for reimbursement. Any help would be appreciated