I would suggest that outside of London the salaries are massively different. Though £15k is still almost-criminally low regardless of where you are. I'd expect

I would suggest that outside of London the salaries are massively different. Though £15k is still almost-criminally low regardless of where you are. I'd expect someone with 3 years web dev experience to be anywhere from mid-20's to mid-30's outside of London, and a cursory search for Suffolk that appears to be about right.