Roald Dahl's Three Little Pigs performance licence - admission fee. For public performances at which an admission fee is charged. Roald Dahl's Three Little Pigs performance licence - admission fee. The cost of a public performance licence where an admission fee is charged is GBP25 + VAT + 10% box office takings To pay for a licence for a performance at which an admission fee is charged, please contact Customer Services by Phone/Fax or Email: 0844 576 8125 (Primary Schools) 0844 576 8126 (Secondary Schools & Colleges) 0844 576 8131 (Fax) email: education@harpercollins.co.uk