In December 2011, Orange sent a text to its customer base to notify them that they were increasing monthly contract fees by just below RPI rates. They imposed a 4.34% increase, coming into effect on 8 January. It was identified that the clause that supposedly allowed Orange to increase by inflation mid-contract, clause 4.3.1, was flawed as it referenced a Statistical Office which no longer exists. Specifically, Orange referenced "the All Items Index of Retail Prices published by the Central Statistical Office in the Monthly Digest of Statistics". The complete Terms and Conditions are available here and [https://web.archive.org/web/20120105170642/http://www1.orange.co.uk/mobileterms/pdfs/PAYM-terms-and-conditions-for-the-supply-of-Orange-Network-Services-20110215.pdf here. Orange maintain that their inaccurate wording in previous contracts was legally binding but chose to settle all known court cases brought against them on this issue.