VISA REQUEST.CO.ZA LEFT ME STRANDED

I recently made use of Visarequest with a trip abroad. The reason that I used them was to ensure that I had no unforseen glitches and that all my visa requirements were met. Long story short, I was not allowed to board as my flight to Spain went via London ( and even though it was in transit) I needed a transit visa for those two hours. I was not allowed to use my BA flight as it went through London and they require a transit visa. When I called them that night from the airport, Mfundo was unhelpful and said the offices were closed. Which meant my booking was cancelled and I wasnt allowed to board. When enquiring with their management, they said their duty was to load my application on UK visa system and request an appointment, that they dont look at my flight information. (totally contrary to what the same company does for the Spanish visa, which they check flights etc) they basically washed their hands of it. both my Spanish and UK visa was handled by them yet they overlooked that I required a tranist visa. My R11k flight was lost and they said they were sorry for the inconvenience and refunded my R600 visa fee.