I was online for 30 Euro for my prepaid mobile but this amount is not deducted from my bank and still I can see credit of 30 Euro under " https://www.congstar.de/mycongstar/ "
1. please clarify this credit issue
2. Even after this credit, my account is not deducted monthly charges, please clarify this as well.
3. How can I view 6 month's bills?
Thanks & Regards,