I keep getting emails from a firm 'living social' and it is driving me mad. I pressed the unsubscribe button and it said 'unsubscriptin fail?

I have pressed the 'unsubscribe' button about 10 times and the same answer comes up 'unsubscription failed. Please try again later'. They send me about 5 emails a day and I'm not interested in buying anything from them.

I have unsubscribed to other firms and all successfully.

Please, can anybody give me advice?...Show more