Adjusting a written off pledge

Cross Posted to Devo/Technical Heeellpp! A member of our devo team wrote off part of a pledge that really should have been an adjustment. Unfortunately, since write-offs can't be adjusted after-the-fact, now we are stuck. I know I have seen this problem come up for others before and I think someone had a back-end solution-- let me know if you do! Here are the particulars (with some dummy amounts): 1. pledge is entered ($10 due) 2. payment is received ($6 received) 3. pledge was written off ($4 written off) Now the pledge is un-adjustable, but we need to move a portion of the $6-- say $2-- into a different fund. Aaaaaaaahh. Obviously, going forward, better write-off protocols are the answer, but in the mean time-- what should I do? Thanks, Sheila