Dennis I spent many years with USDVA in DC. I have no idea about your late billings, but VA is well known for being years behind on nearly everything they do.
Used to be I believe a quarterly billing. Under Trump and the start of the "pandemic" the billing was curtailed. Can't find the letter I got but I "thought" we were gittin a freebie fer awhile! maybe just maybe 46 needs the money Now from VETERANS that was Not collected! I mean Somebody gotta give money to all our "new neighbors" streaming over the Southern "border"!

RIDE SAFE.