What will happen to my GCSE certificates if I collect them from school in 2011 the still have or contact exam boards?

If you collected your GCSE certificates from your school in 2011, the school no longer has them. They would have released them to you, the rightful recipient. The exam boards (e.g., AQA, Edexcel, OCR) also wouldn't have them; they only issue the certificates to the school or designated receiving institution.

Therefore, if you don't have your certificates, you'll need to explore why that is – possibly loss or misplacement – and unfortunately, you won't be able to obtain replacement certificates from the school or exam boards themselves. You may be able to get certified copies from the exam boards, but this process may be costly and complex. Contacting the exam board directly might be your best option, though it's unlikely you'll obtain the original certificates.