I received a leaflet through post from ING Direct and said if i open a new savings account (current interest rate 3.5%) i can get free £20.
All i had to do was to call on 0800 052 8867 and quote ING074.
I called and opened a new account in few minutes...
Its open to new customers only and you need to fund your account before end of february to get £20.
And by the way the leaflet was not personally addressed so i guess anyone can call and get this offer.
£20 is not great but if you are opening up a new account with them anyway then "every little helps"...