I live in a flat. Just one cold tap isn't giving any water. All the other taps are working fine hot and cold, just this one is not giving any supply of cold water. Any ideas are appreciated. Thanks

Lets start form the supply line, close the cold angle valve under the sink disconnect the supply line from the faucet open the angle valve slowly see if the water if flowing if it does problem is in the faucet cold port if not problem is with the angle valve or supply line, also if tell us the brand and the model number of your faucet will help, Thanks.

John