So I needed a cover photo for a large facebook group designed ASAP. I looked for graphic designers across a few marketplaces, and finally found one online. He didn't have many vouches but his portfolio looked up to scratch. He demanded I paid upfront, which I did (only 5m, meh) and then made the simple design I asked for within 10 minutes... the design was a little scuffed, but I just need it soon so wasn't too bothered about the quality, aslong as the info was correct. He then sent it me (finished) and the dimensions were almost 3X as big as I requested.
I then asked him to re-size it and he said 'I did it from a template, I don't use facebook, how should I know the size of a cover photo?' - I then said well that's what I asked for prior to the order, so if you didn't know you should've asked or did some research? He then cropped the image to the dimensions I asked for, which cropped half of the initial design out... I said this is not what I asked for, it's a picture you designed which is half cropped. He then said I was rude and that he didn't mean to send it and was unfinished... So I waited another few minutes and he sent me the original (initially oversized) picture cropped down to the size I asked for and the text was tiny. He'd obviously not done the text in proportion to the background etc. I told him it was too small and unclear and he suggested that I was being rude again and that it was fine and that he had resized the image as I asked...
I literally just blocked him (I paid upfront so if anyone has been scammed, it's me), because I couldn't be bothered to deal with him and his bullshit anymore. Unfortunately he isn't on OSB, but jeez... What a bad experience.