Price for rewards

Hi has anyone else noticed that the price for the rewards has gone up just last year the prices was 3750 for a £5 gift card now when I look at it. The price is 5000 for a £5 got card that means that I have to walk even further to get the gift cards how is that helping me. I downloaded this so I could earn money and get gift cards as I am not earning enough and now I have to do nearly twice as much as last year just to get a £5 return.