I know this might not get me anywhere but I didn't feel like dictating myself to have been in breach and for this to be recorded as part of my immigration history for god knows when. Sorry but that is pretty much the textbook definition of deception. I suggest that you reread what I put here before...

Will they still see it as a breach and reject my visa or even ban me for the next ten years? No. May I say that you appear to be over-thinking this. You did not breach your work conditions. Your employer appears to have had a weird way of organising your pay, but that is nothing to do with the hour...