I went to Wimbledon yesterday and there are stalls by the Tea Lawn area. One of the stalls is a HSBC stall, and they are offering free strawberries and cream for HSBC customers.
All you have to do is show your HSBC card to them and they give you a ticket to redeem your free strawberries and cream, which are £2.25 otherwise.
I didn't know where to post this so go easy on me. Obviously, you would have to be inside the gates of Wimbledon to redeem this offer.