I have the same problem as mentioned in a few threads having cleaned up some very old big stuff on [REDACTED] using BFG as per your excellent guide to repo maintenance.
Seems as a free user I'm unable to contact support directly so would appreciate someone passing along my details to get that GC'd.
I ran a couple of passes of BFG so have made my violation of 1GB limit vastly worse due to pushing back from the mirror!
Happy to become paid user once I get monetisation up a bit to get past the spousal filter ;-)
I have deleted a couple of other repos, one of which I'll recreate as LFS because I was pushing design artefacts.
thanks, and sorry for the overhead 😳