Hello everyone, i'm new here and in advance i apologize for my level of english. I have been doing MTurk for about 3 weeks and until yesterday everything was ok, however today when entering the dashboard I noticed a large number of rejections. Yesterday I performed almost 200 tasks of 0.01 cents provided by Requester: Yuxin Wen. These were easy and quick tasks to analyze which image was more like the first one. Well, the Requester has so far rejected 12 of my tasks arguing that: "working time too short for such a task". There was no instruction in the task that I should spend a minimum amount of time doing each, especially when it came to simple, low-cost analysis. My Approval Rate, was 99.4% and already down to 97.9% What can I do about it? I sent msg to Requester through the dashboard, but if there is any other action to be taken please let me know. I don't know if the MTurk platform has any arbitration method to resolve disputes between workers vs requesters. Thanks in advance.