Unfortunately you won't find a policy for Turkish residents apart from going to an agent. We use Dinah upstairs next to Macdonald's.
Don't expect a policy with missed departure and lost luggage though.
Policies are only for medical treatment.
I've heard of cases where people living in Turkey have used a UK policy and come unstuck.
I take an annual policy then I'm covered for medical care when I go to the UK as well as abroad.
There are world nomad policies that cover Turkey but very expensive.
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