CITI: Here's what our clients are asking us about the UK's Brexit vote

The UK's referendum on European Union membership is just days away, and investors have been unsure what to make of the potential for a Brexit - Britain leaving the EU.

Nowhere has that uncertainty been more pronounced than in the currency markets.

Since the referendum campaign began, the pound's volatility has surged to its highest level of all-time - surpassing levels seen during the financial crisis. A big move in sterling is expected whatever the result.

Understandably, investors in the currency are a little bit worried about what to make of the huge amount of data, the sheer number of polls, and the changing odds around the referendum, as well as what might happen to the pound after the vote.

To guide investors through that minefield, Josh O'Byrne, a strategist with Citi FX has compiled a handy guide to the biggest and most frequently asked questions surrounding the referendum, as well as providing some useful charts about the expected issues.

Check out the questions and answers below.