Consumers now have less than a week to take advantage of Plusnet's current broadband deal.
Since last month, the internet service provider (ISP) has been offering its customers three months free service when they refer a friend to the firm's broadband services.
Both the existing Plusnet customer and new subscriber are then rewarded with free internet access worth almost £20.
"Sounds like a tempting offer, doesn't it? And it's really easy to get," commented Plusnet's Andrew Clayton.
"Make sure you give your Plusnet username to your friend so you get your discount. When prompted, your friend will need to enter the special code 'refer3' to get their three months free."
However, the ISP is withdrawing the promotion on October 10th, meaning consumers will have to act quickly to take advantage of the deal.
For a monthly fee of £6.49, Plusnet Value offers download speeds of up to 20Mb and a 10GB usage allowance.
Plusnet Extra offers 60GB of monthly usage for £11.49, ideal for customers likely to use the web more frequently and to consume media-rich content.