The best restaurants serving American food in Townfield Hillingdon London

3rd time ordering from here.. everytime the food has been lovely but everytime there is something wrong (something missing) no peri peri sauce on my wrap or no wrap or no peri peri salt. Delivery says approx an hour but always takes minimum of an hour and a half so be prepared to wait (order early or collect). Rang up to say no wrap and they brang it round no questions asked within 15 mins but still no peri peri sauce... rang to ask where food is after 1 hour 20 and always get told it is on the way!. Will eat from here again but will no longer ask for delivery as 3 times is too much to get wrong.