Also forgot to mention but OP, did you think of getting a remark for either of those subjects? You have fairly good GCSEs so I don't think you're accademically unable to get good grades, so maybe do that? Speak to someone at your college, try and get a photocopy of the script back (but not the original because then it won't be able to be remarked!) go through it with your subject teacher and see if they think you deserve more marks. if not, you then have a script to refer to for revision and you'll know where you went wrong (but note that this does cost money)