Instructions:Just found on MSE-thanks Martin
Restrictions: Collection only. Redeem tokens on or before Thurs 5 Nov. The two tokens must be from different days. Plain cheese option also available. Excludes Papa Johns stores in Ireland, Butlins & Haven holiday parks.
Collect two out of four tokens from The Sun (20p) or The News of the World (£1) on Sat 31 Oct, Sun 1, Mon 2 or Tues 3 Nov and get a free small pepperoni pizza worth £8.99 from Papa Johns. The tokens are valid from Sun 1 Nov until Thurs 5 Nov.
If you got both your tokens from Monday and Tuesdays copy of The Sun you could effectively get a pizza worth £8.99 for 40p! Alternatively, use one token to get a buy one pizza get one free, valid from Sat 31 Oct Thurs 5 Nov. Full terms on The Sun's website.