Vodafone India — Number transferred to someone else without intimation

Address:	Thane, Maharashtra, 401303
Website:	www.vodafone.in/existingusers/hns/pages/h2h.aspx?h2hid=c0ee9coevbxk7dg1

I ahve been using vodafone prepaid number from the past 10 years from the past 1 year i am working abroad and still using the same number as i have many personal details like bank, credit card etc aligned with this number.

Few days back it stopped working so my friend went and check so the vodafone representative informed him that the number has been allocated to someone else.

Without any intimation how can they transfer the number will all my personal details.