The application deadline is in advance of the Gambling (licensing and Advertising) Act, which comes into force on October 1.
Offshore operators that are currently regulated overseas but transacting with consumers in the UK and wish to continue doing so after October 1 must submit an application and pay a fee by the deadline tomorrow (Tuesday).
Such applications must be made through the Gambling Commission’s official website.
If an application from such operators has not been determined by October 1, the applicant will be issued with a continuation licence to enable them to continue to trade until completion of the application process.
source : www.igamingbusiness.com