BT Openworld - BT's mass market ISP - is offering business customers £130 cash- back for companies that sign up to any one of its three 'multi-user' Broadband PLUS products.

The promo applies to all orders placed until September 30 with installation taking place before October 31.

The offer covers the purchase of BTopenworld's Business 500PLUS, 1000PLUS or 2000PLUS products - suitable for office networking.

To qualify for the product users must also sign up to its Internet Business Pack.

Once all the necessary conditions of the offer have been met, and businesses have squeezed through all the hoops laid out before them, BTo will reimburse companies half the cost of their installation - which works out at a saving of £130. ®