hi new to this..I have been self employed for 2yrs now and on June 5th received a letter saying that they may have been paying me too much.I earned around £5000 its low but steadily improving.Ive sent everything off to prove my income but its nearly 5wks on.Rax credits still being paid and even up by £3 this week..Am I earning enough? Has any one else been checked?I make dolls x