How will the stamp price increase affect your household or business? For the answer and Royal Mail's justification behind their decision, read their full statement concerning the stamp price hike.
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Ukip leader Paul Nuttall also said he would want to get rid of Sharia courts.
Over 40,000 people picked up their packs to take part in the annual marathon in the capital.
The country's voters are concerned about security, the economy, and the 10% unemployment rate.