General ACCAAAT Exemption

Hi I have just joined ACCA, I completed AAT over 5 years ago, so ACCA have said I can claim exemption from F1-F3 however they state: "As the exemptions awarded to you are based on a qualification gained more than 5 years previously, you are required to forfeit these exemptions and sit the relevant ACCA examinations should you wish to subsequently apply for an ACCA practising certificate and audit qualification for the UK" Can anyone put this into plain English for me :-)