Customers signing up for a BT Infinity broadband deal can now get their hands on a £100 Sainsbury's shopping voucher.
The service provider has upgraded its fibre broadband deals, having previously offered a £60 gift certificate with super-fast packages.
UK consumers need to switch to BT broadband before June 24th to take advantage of the offer, which gives them the chance to make significant savings at Sainsbury's stores across the country.
Households in fibre-enabled areas have three super-fast broadband deals to choose from - BT Infinity, Unlimited BT Infinity 1 and Unlimited BT Infinity 2.
BT Infinity 1 offers up to 38Mb download speeds and up to 9.5Mb uploads with a 40GB usage allowance. Weekend calls and a free connection are included if customers need a new line installing.
The entry-level fibre broadband deal is priced at £15 per month plus £15.45 per month line rental.
Unlimited BT Infinity 1 offers the same broadband speeds, but with no usage cap. Priced at £16 per month for the first three months, the mid-tier fibre package ordinarily costs £23 per month plus line rental.
Each of the 38Mb deals comes with the BT Sport app and online player, unlimited Wi-Fi minutes, BT SmartTalk, BT Family Protection, a wireless router, BT NetProtect Plus and 2GB of online storage.
Faster broadband speeds are available with the Unlimited BT Infinity 2 package, which is priced at £26 per month - discounted to £20 for the first three months.
The top-tier fibre broadband package offers download speeds of up to 76Mb, uploads of up to 19Mb, and unlimited data.
The broadband deal includes the BT Sport app and online player, unlimited Wi-Fi minutes, BT SmartTalk, BT Family Protection, a wireless router, 50GB of cloud storage space and BT NetProtect Plus.