My BitBucket repo had a whole bunch of large files in that weren't needed. I removed them and then wanted to clear them out from the history to shrink down the repo which had gotten too big.
I ran BFG repo cleaner which reported 1755 files found and processed - all the ones I was expecting.
Ran the final git gc as instructed here: https://rtyley.github.io/bfg-repo-cleaner/
All fine - the .git folder shrunk to 17% its original size. Pushed it back up and the repo size as reported by BitBucket actually got larger!
Not sure what went wrong as all seemed to behave correctly up to that point.
Any advice gratefully received as I really don't want to have to recreate the repo to bring down the size.
Thanks