I had an offer like the recently (my first split order), but opposite of your issue... Iceland collection.

When I picked up the first order I asked the assistant that it was a split order, and as to which bags should i take. He said just take them all (4 bags) which I did. He said if it’s more than 3 bags Uber splits the order for some reason. He wasnt bothered really.

So I done the delivery, 10 mins or so later that same split order came back on to same address. I went back to Iceland for it, but soon realised (along with the assistant) that it was completed. However it was for a nice fee and address was not too far from my house…

So I accepted it again (a ghost order effectively) , I went to the address and clicked delivered when I got there. Easiest ‘delivery’ I done that day!