Thanks Andy, I totally agree I did accept the price at the start - the price was £150 the for the first 8 circuits and I stated I thought that would cover the house as it's so small. The electrician has come back and stated that there are ' a very large amount of circuits' for the size of the house, therefore they must have thought the bill would be larger than I expected - at no point was this relayed to me until I got the bill.