Plusnet is offering new customers unlimited broadband for just £2.50 a month, with those signing up online also receiving £50 cashback.
Those taking up the new offer will receive up to 17Mb broadband with unlimited monthly usage for £2.50 a month for the first 12 months, compared to the regular price of £9.99.
Customers will also receive a free wireless router, free activation - which normally costs £25.99 - Plusnet Protect powered by McAfee, and UK-based customer support 24/7, as well as the free help tool, Plusnet Assist.
Free weekend inclusive calls to UK landlines, 0845 and 0870 numbers are also included in the package, as well as free anytime calls to Plusnet Phone customers and free calls to Plusnet Support.
New customers who sign up online will also receive £50 cashback, providing they commit to a 12-month contract, which also requires them to pay £15.95 monthly line rental.