I recently left one job for another, I didn't work my notice, just returned everything at the end of the week and said see ya. I have received a letter stating that until I return a certificate to them they will not pay any monies I'm owed. I don't think that it will be much money owed anyway because I'd taken too many days Annual Leave, however, I need my final payslip and P45, can they legally keep these from me? Oh, and I'm not returning the certificate, It has my name on it and they just want to throw it away.