Hi Asbo
I understand your reluctance due to your prior experience, but the reality is that you can't tell them they can only do it under certain conditions. It's too easy for someone to misinterpret that. You could tick yes and add a note saying you do so reluctantly because of your prior experience and if they require further information will they contact your GP and not speak about you to a receptionist who is not qualified to comment on your medical condition.
BIS
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