No. Like any business, we run promotions at our own discretion which run for a
limited time. This would be in line with our marketing strategy in order to boost the number of members on the site to provide more choice for those who have already registered.
Therefore you can't get a refund or get switched over to being a free member just
because someone else has. It's the equivalent of your friend buying sale items
from a shop and you paid full price - you couldn't go back to the shop and demand a refund of the difference.