I was speaking to Koray of ATAK translations the other day and he explained that the fault lies with the software used for this transaction which was created to take a Kimlik number.No other number allowed the sale or purchase to ahead as it was a required field item.But if anyone has an old,expired residency,by following the turkish government formula you can still get the yabanci kimlik number even though you may now be using a 90 day visa.