i hv a bsnl 900 uld combo plan.i crossd the 8 gb limit at 10th nov...& they stop to giving 4mbps speed & from the 10th the speed is stuck in 512kbps. everythng is good nothing is went wrong.but but from the 29th nov & its 30th nov i recevd the speed of 4mbps once again but month is not complited right now.is it their tecnical fault???one thing i have to mention my last date of paying bill is dated 29th of every month.is they recycle the fup from the last date of paying bill of every month????