To date, LiveOps has over 200 customers, including Salesforce.com, Symantec, and the Royal Mail Group.

FORBES: Saving Customer Service With Social Media - And A Song

The delivery service, part of the Royal Mail Group, apologised for the failure in the system which allowed people using the mail tracing service access to the name, postcode and signature at various addresses.

BBC: Royal Mail's Price Finder website hits glitch

She said that the association understood the pressures on Royal Mail, but she called for the group to extend its price freeze this winter to all pensioners, not just those on certain benefits.

BBC: Stamp prices: First-class stamps to cost 60p

For "commercial reasons" Royal Mail says it does not release sales figures, and it is hard to know exact numbers, or what age group is buying them.

BBC: The extreme stamp collecting of first day covers