Last time this happened to me, it was with a company that I had not worked a lot with. I'd been out all day with the family, visiting the museum; shopping (real life shopping, not jobs); an amusement shop; and went to a fun restaurant. While we were in Denver, I picked up 3 shops, one being the amusement one.
We got home soooo late; had left soooo early in the morning. Day was sooooo busy.
I literally had to get up after EACH sentence that I typed into that report and walk around...and even with that, I was typing with my eyes closed and would jolt awake and notice the nonsense that was in the narrative.
One. Sentence. At. A. Time. And I had to work hard to make that ONE SENTENCE cohesive with the paragraph and work for the narrative. A report that should have taken an hour took 7 hours (making the exhaustion worse....never ending cycle)
The other two shops: I emailed the scheduler and said it was such a busy day and late night and just said that I would have them in by 5pm the next day. Woke up at noon to have an email from the scheduler saying, "No prob."
I think that if you are a good shopper with a good rating and you are reliable, communicating with the scheduler is key and they will work with you.
Similar incident a few years ago: got home and had a migraine. Reports due at midnight. Emailed schedulers and said I was taking some serious meds and would be knocked out and would wake up bright and early feeling better and refreshed and would do the reports. They were fine with it.
Also: I think that when they KNOW the shop is complete; and they KNOW that you PLAN on doing the report...that makes a diff too
****Schedulers should read this thread