Sorry the offer ended on Jan 22nd. It was explained in the email both how to retrieve it and the duration of the offer.
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Oh no! I understand it was explained clearly but some of us are juggling quite a lot and had still hoped to take up the offer -- just left it a bit late! I thought it was until the end of Jan but came and realised I got my dates mixed up! Really sorry! Please can you give us a few more days? Pretty please :)