We have put together a short survey to capture your feedback in terms of what BT can do when you experience home Wi-Fi issues. We would appreciate it if you could take a couple of minutes to complete a short survey. Read more from here, Fix my home Wi-Fi
You need to upload the image to a site such as imgur first
No you don't, you just click on the picture icon and browse to the file on your PC/device.
Example direct from my PC below.It does have to be less than 333Kb.