I am using Vodafone service since last month. I am using Prepaid connection. So, never got billing issues yet. But the one problem I faced was when I tried to activate Vodafone live (GPRS) feature. I followed the instructions given in the websites & got it activated in less than 10 minutes. The problem is when I send SMS to get the configuration to use GPRS. I sent SMS & waited for 2 days. But no reply. Vodafone website was no help. After that I send 9-10 SMS to the same number using different keywords I found in many websites. I also searched for the configuration in Google. But still didn't work.
I send a detailed email to Customer Care requesting the configuration. I got reply after waiting 3 day with attached configuration in doc file to set it manually. That worked fine.
The next problem was when I tried to use Opera mini with Vodafone (which is still not resolved till date). I emailed them first about asking whether Opera mini would work with Vodafone or not & they said any 3rd party browser software will work if the phone supports it. I am still waiting for their reply or a solution for this. But now I am think it's not worth the effort. It's taking too much resources & the speed is very low. Even lower than BSNL unlimited GPRS plan. (otherwise I was going to start a thread here about this)