The 25% cb will NOT be there on the initial expenditure of new connection (or the existing inactive ones which are made active now) - if such expenditure is on the hardware cost and other charges (like shifting, surrendering, safe keeping, transfers, hardware damage, replacement of cable, advance payments, deposit amounts, labour.....).
All these are getting CB till now.
No CB from now on.
Only the actual monthly RECHARGES and BILL PAYMENTS will get CB from now on. For all existing and EVEN NEW Accounts or EVEN REACTIVATED Accounts.
That's what I understood by reading it carefully.