I ran BFG over my repo, push all the files I've cloned with '--mirror', but the size of the repo is still the same in the bitbucket account.
I believe git GC needs to be run, repository name is "<repo_name _removed>" and size is showing 1.8 GB.
I can see in our system that your Bitbucket Cloud account with the same email as your community account has access to several workspaces and repos.
I could find one repo with the name you mentioned (from the ones you have access to), and its size is now well below 1.8 GB.
Could you please confirm if things are ok now and if you need any further help?