I was a returning customer to see Mark with a different vehicle. This time a Nissan Qashqui which uses the newer more expensive R1234yf gas. The price quoted was £40 plus £10 per 100g of Gas. Mark extracted the gas and only found 50g of gas rather than the 500g there should be. The gas was refilled and a sealant added which was an extra £20 which seemed pricey but I hope worth it. The end result was £105 and a fully functioning AC system pumping out 6C cool air. The appointment was speedy and done in 25 mins max. Overall a bit more expensive than anticipated but still cheaper than the main dealer price of £120 and I was present while the work was done and Mark explained every step. I just hope the gas stays in and the sealant that was recommended does the trick.