Just found an amazing offer by accident ...
This morning I received an offer for Premium Membership for £20 for 4 months, which I thought was OK and went to accept. Before I did though I saw something about an AncestryDNA Plus membership which "is a low-priced membership that provides access to the match relationship tools listed above, 40+ personal traits, and DNA inheritance features. Access to paid records, other members’ family trees, and advanced DNA and family history tools not included", so out of interest I clicked on the link to see how much it was and was offered a 3 month Worldwide membership for £1. The offer is open to new and returning suscribers and not for renewal of current subscriptions.
Definitely an offer I couldn't refuse.