I freed up 250GB of cloud storage but a week later it says I only have 95.6GB available

A week ago I deleted approximately 250GB of unedited RAW files to clear up space since I was nearing my 1TB limit.  I exported all files before deleting, and they take up about 270GB on my hard drive after exporting.  On 12/24 after finishing the clean-up work I wrote down that I had 67,846 files in my account, and 249.9GB free, which should keep me in the clear for upcoming vacation photos I plan to take.  But I came back today (12/30) and while I still have 67,846 files, it now shows only 95.6GB free.  I have over 7000 photos and videos in the Deleted folder, but purging a couple dozen of the larger files made no difference to the remaining storage, so I don't think those are counted in my total (and they weren't counted back on 12/24 after deleting the files).  What happened to the roughly 150GB of free space that I no longer have?  My last imported file was on 12/16, before I removed all the old RAW files, and the file count is still 67,846 files, so why are the same number of files now taking up 150GB more space than they did a week ago?