Dear Sir / Madam
This is to bring to your kind notice that, I have using this service for 5 or 6 months at an average monthly bill of Rs1500/-. On 05/12/2011 i have noticed that, the internet usage were inflated, for just 17 minutes of browsing ( checking mails) its showed the internet usage of 40MB ,Called up vodafone care , where i was informed that usage cannot be checked and cannot be taken as complaint.
The same issue was pertaining so on,The next step was to write to vodafone.ch@vodafone.com on 1/01/2012, where i have raised the above mentioned issue and i also told them, that i would not pay the due unless solved. The next day i was shocked to receive a bill of Rs 7500/-.
Please find the attachment of their reply
Request you forward this concerned authority and ask them to solve thisissue.

Thanks & Regards
Aziz.A
9962049049