For every # 4 you pay in, the government will pay in # 1, with a government bonus capped at # 1000. (sainsburysbank.co.uk)
On 26 November 2013, the Dutch government published a draft legislative proposal in which it introduced a 20 % bonus cap for financial undertakings. (leidenlawblog.nl)
While the Terms and Coniditons refer to an overall bonus cap of 1 Billion points, this just seems to be a different name for the 15 % bonus promotion. (austravelpoints.com)