Where can one buy cheap international calling cards in the UK?

* Available at: Most major retailers, including Tesco, Sainsbury's, Asda, and Morrisons

* Prices: From £5 for 200 minutes to £20 for 2,000 minutes

* Features: No hidden fees, no contract, and calls to over 40 countries

2. Lebara

* Available at: Most major retailers, including Tesco, Sainsbury's, Asda, and Morrisons

* Prices: From £5 for 100 minutes to £20 for 1,000 minutes

* Features: No hidden fees, no contract, and calls to over 40 countries

3. Voxi

* Available at: Voxi stores and online

* Prices: From £10 for 200 minutes to £20 for 1,000 minutes

* Features: No hidden fees, no contract, and calls to over 50 countries

4. Giffgaff

* Available at: Giffgaff stores and online

* Prices: From £5 for 100 minutes to £20 for 1,000 minutes

* Features: No hidden fees, no contract, and calls to over 50 countries

5. Three

* Available at: Three stores and online

* Prices: From £5 for 100 minutes to £20 for 1,000 minutes

* Features: No hidden fees, no contract, and calls to over 50 countries