7.3W Dish Size ????

Hi im looking to try and find 7.3w so that i can get Bein Sports im based in north kent in the UK and can get about 50% signal on TP 10719 at 7W on my 1M Dish but just cant get any sort of signal from the TP's i need for Bein Sports so was wondering what dish size i would need to get these TP's and if anyone on here can get them from kent south london area