Tech issues - video interview - 4 tries & losing my mind, any help?

Update! If anyone else is struggling when doing the videos over 3min, keep it to 3min. I just did each question in 2:59 and it was accepted in one go. Quite annoying but here we are.

Hi everyone!

I'm applying for the compliance caseworker role and passed the tests so i'm on the video interview phase.

I logged in and answered the 1st 2 questions without issues, but after answering n.3, the video didn't save my whole answer and it didn't upload. I waited over 15min and nothing so, in a moment of panic, I refreshed the page, which took me back to the question. I recorded my answer again and once again the same, not saved completely (even though it was less than 4min) and not uploading.

At this point I sent an email to the HRMC queries email & also to support. No answer from HRMC yet and support has been useless. They sent me a troubleshooting guide which didn't apply to my specific scenario, but I tried what they said, logged in again and did a 3rd try. Nothing. So I answered them again with screenshots, even adding one with the code on web inspector that shows their website has an error, and their response was pretty much 'stick to about 3min for your answer and try a different device'. So I just did that, my 4rd try... same result.

Has anyone had somth like this happened to them? Is there any chance left for me?

Thanks for reading