It is stamped with a 90 day visa,
but clearly states only 90 days out of 180
get a visa stay 20 days go out of Turkey for 2 months (60days)
Return, buy another visa (The second visa is for 90 days) but you have used up 20days therefore you can stay for 70 days (or any amount lower than) or 14days and return return again upto the allocated days remaining on the 2nd visa.
Enter Turkey 90day visa (stamped 90days out of 180)
holiday stay 21days
21days = 69days left out of 180
return for another holiday 2months later (your 1st visa has only approx 7 days left to run,
buy 2nd visa on entry, you now have a total of 69days out of you 180 remaining.
You still have to buy a 2nd visa, the first visa is not valid for 180day, it is only stating that out of 180days you have 90days.
saoirse:
you come out on 15th January, for 1 week you have 83 days left (out of a possible 180.
You come again in July buy a visa (£10) you can have your 21 days no problem, you have 83 days left from your January visa, and your new one will start again with 90 days from July.
It is a mess, A Turkish friend phoned the consulate, the explanation is as I have described.
(Still a complete Farce, for people who have a property and want to holiday for long stints yet are not resident of Turkey.