Vodafone forcing me to take my own number of seven years as a new connection !

Why were so many numbers deactivated by Vodafone in October 2015 and that too at the end of the month and at the time of upgrading their technology ? Instead of admitting their mistake they falsely accuse the customer of not submitting updated documents ! Very convenient for them to blame the customer ! My number stands deactivated for a very long time now because of their carelessness which they are camouflaging by a false accusation against me. My number has been snatched away by Vodafone without proper investigation or verifying facts and they are saying that I can only have my number back by taking it as a new number now or it would be given away. Are they trying to meet some new targets ? I would like to point out that before all this happened, they had actually informed us about the change in relationship number of my account in last month's bill and I wonder if that contributed to their deactivation of my number ? Why ? Were they planning all along to deactivate many old numbers and force us to take our own numbers as new connections ? After deep researching, I found that many long time customers have faced the same problem around the end of October or just before the long weekend of Dusherra.