Not The Real Price

If spread betting firms who base their prices on an underlying exchange traded market fail to give those prices then could you not complain to the gaming authorities who regulate them...

Its like betting on a football game and the real score is 3-0 but your betting company say it was only 1-0.

It seems the SB companies 'adjust' their price sometimes. I suppose they do it to balance the books correctly but I'm not experienced enough to know the ins and outs of it all. I've used cmc a lot and noticed significant diffence between their marketmaker price and the direct access prices from someone like advfn. They do state it though in their literature but I would say a lot of customers are unaware this happens. I guess you just have to trade their version of the market!?

Spread Betting firms quote there prices as dervived from the underlieing market.
This means that there quotes are taken from the underlieing market instrument with spreads added.
It is not uncommen for the high or low of the day to be slightly inflated price from the markets price with a SB firm this takes outs stops, over night postions get hammered but this is the risk in any market.
What a lot of SB custermers do not relise is if your trading the Footsie for example they will take there prices from the futures market and when its convieniant they can ajust that quote back to the real index price.
What happends is if most of a SB firms clients are long and the futures price rallies and the cash price dose not it is in the firms best interest then to revert the quotes back to the real index quote.
Yes is is scqured pricing, I have evedence in writting that this happends at one particular company.
So like helterscalper says if the football game ended at 2-0 and the SB firm said it was 1-0 as a custermer you have to accept there prices.