- Online Voucher Codes is gaining tremendous momentum in the market due to its productive and lucrative advantages. According to a report, the voucher code industry is capable of crossing the remarkable £4 billion mark in online retail sales for 2009. The figures for the same in 2008 was £3.82 billion that have resulted from an impressive growth rate of 22 percent each year. The recognition of voucher codes is expected to develop on similar lines as greater number of people are switching to shopping online. Voucher codes currently available offers outstanding variety and terrific discounts in the products.