They do, but no such issues since the HUB3 is back in.
I think the upload not showing in the HUB5 and having only 26mbps upload on the HUB3 are a clue as to why I had problems.
These upload issues only came when VM sent me a text mid September telling me they were doing some routine maintenance in the area.
My upload speed was always bang on before this. My upload was also back to speed on the HUB5, but with massive ping spikes...