The magnet has fallen out of my Tap HandleUpdated a month ago

Not to worry! You can continue to use your Tap Handle, just with a little extra care. Simply remove the small magnet and slide the Tap Handle back in place. 

Unfortunately, as all Pinter 2s are now out of warranty, we will sadly be unable to get this replaced for you, but as mentioned above, you should still be able to use the Tap Handle as intended, just with a little more care.