These are: Its so called WorldBridge Service (Visa Services), which processed and issued millions of visa applications to enter Britain, did not involve British authorities.[citation needed] CSC was one of the contractors hired by the Internal Revenue Service to modernize its tax-filing system. They told the IRS it would meet a January 2006 deadline, but failed to do so, leaving the IRS with no system capable of detecting fraud. Its failure to meet the delivery deadline for developing an automated refund fraud detection system cost the IRS between US$200 million and US$300 million .[citation needed]