it would have beeen the usual upsell which is being pushed on to staff at present...
what you are getting is a months upgrade at the same price then you billing will stay on the new tier...
so in your case, 24.99 current (2mb), 24.99 next month (10mb), then onto 34.99(10mb) until you downgrade
... & do the same for the next month...lol
so your speed will get upgraded within 3/4 days as its taking this long to process all the upgrades being put though.. yes, speed can be upgraded straight away, but for the discounts to be added ( so you retain the same price for the first month ) there's a bit of a backlog & will take that long to get throught to them, sometimes quicker..
regards
barfly