Vodafone India — charged beyond credit limit

I am a loyal vodafone user for past 6 years, with a clean record of payments

I travelled to dubai for 26th -27th july, and called customer care to check on international charges (My international roaming package of rs. 145 was on). The customer care executive told the charges to be rs. 5.5 per 10 mb, if i do not take a package.

Since i did not need it, i did not take a package. However due to some emergency i was forced to use my mobile internet on roaming and used ~ 100 mb data, aware of the fact that worst case i will touch credit limit
Despite my credit limit being 9000, the data was not disconnected till i got a message of rs. 47000 charge!! There was no intimation on charges till the one with rs. 47000.
After coming back i had to go through multiple recorded messages before i could talk to a customer care executive, who told me they can not help me with this. On top of this i got an email on 29th july stating my bill is now rs. 70000, and unless i pay all my services are off
I went to vodafone stores and they said, bill is not yet generated and my services can not be started again!
As a consumer with vodafone for 6 years, i have to wait for 7 days before vodafone generates a bill to have a working sim!!! Will vodafone take responsibility if tomorrow i face an emergency and have no way to call or inform someone??
After months of follow up, vodafone refused to answer some of the basic questions i had as a service user :
1) dynamic credit limit is increased w/o informing the consumer if they have a good record? – so basically they will penalize people for having a good track record of payment?
2) the sms i got from vodafone was only on how much mb data i have used. There was no messggae on amount spent till the bill reached 47000. First sms informing me of amount was 47000. Why was there no sms informing that i have crossed my credit limit,?
3) even if credit limit is dynamic, my limit was reset to 9000 on 29th july. Ideally i should be only charged 6500 (Which was my previous limit). If limit was rest to 9000 on july 29th, how can i be billed beyond it for usage that happened on 26th & 27th? Why was their no e-mail on 26th & 27th clearly stating that my bill would anything and credit limit has no relevance?
Seeking help on getting this matter sorted.