Benidorm and phoning home

The UK dialling code is 0044, then you knock the leading zero off the STD code that you would normally use within the UK. However the reason this is a travelwise entry is that there are phone cards available in Benidorm that you enter a code and can speak to the UK at lower rates. The cards are 6 euro and seem to last an eternity when used in a public phone box. Should mention that the number to dial to Spain is 0034 and then you drop the 9 from the number.