Ah... time to delivery is an entirely different matter.
Mine was 17.5 months from paying the survey fee to getting live service - but the process was beset with problems all the way from getting the initial order registered on BTE's systems to getting the service activated at the end. Others have had a smoother time.
If you've just placed your order for survey then I'd suggest you set your expectations around getting service a year from now. Then if you get it sooner, you'll be pleasantly surprised.