ReCaptcha is powered by Google, Google has increased the difficulty of ReCaptcha across the board to combat concerted attempts to crack the captchas by BOTS (automated programs.) Google intend to dial down the difficulty level once the situation is under control. Please note that when attempting to enter a ReCaptcha code that you are also entering the number that appears in the image see below image.
If you have continued issues with entering the codes please contact us 0800 111 999 for assistance.