Wanted iphone 4 for upto £190 and 4s for upto £400; No service/Signal is ok too +

Hi, I would like to buy iphone 4 for amount upto 190 or 4s for upto 400. If the phone is in good condition, I can offer more for it. I am also interested in buying phone which are showing no signal/ Service here. Please call me/text me on : 07787413056