First, make sure you have a Visa or Mastercard , as these are the most widely accepted payment methods in the UK. Please note that using a foreign card may incur currency conversion fees. Ideally, it’
You can buy Pay As You Go SIM cards (we recommend this rather than a contract or plan, which may charge you more) from physical mobile phone shops in London, such as Three, O2, EE, and Vodafone . We
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