Isn't the official requirement to inform the CAA in writing upon which the medical is suspended or does that depend upon the type of medical ?
I found that reinstating it meant getting the AME to sign me off to the CAA. This he couldn't do without sight of the consultant's report which was on my file as a hard copy letter at the GP but which couldn't be released to me or the AME because of data protection or professional confidence. The consultant couldn't release or copy it to me because it was an in confidence letter to his fellow professional.
Apart from the obvious approach to avoid this situation, it may be worth asking what the AME needs to sign off and getting it direct from the consultant before he discharges you.