It is possible that you have uploaded your logo and then in the App or in the proposal you see that it is deformed. This is because the logo is too wide or too long. What we recommend is that you include it in a square of 300x300 pixels so that it always keeps the same shape.
Wait, don't panic, you don't need to call the designer. In this video we show you how to do it in a very simple way.
Basically these would be the steps: