Based on the tweet "@Mothercarehelp after being assured we would get the rest of our order it has been cancelled and a 10% voucher issued.  #nothappy", categorize the level of anger felt by the author. Select from the following: 0: no anger can be inferred, 1: low amount of anger can be inferred, 2: moderate amount of anger can be inferred, 3: high amount of anger can be inferred.