Visa Question again !!!

Hi everyone, Wanting to know how the £10 Visa is working this year, for people going to Icmeler more than once this summer. I was just looking back in my passport, and the wording on the stamp goes thus. " Multiple entry visa valid for an intended stay of no more than 90 days per period.180 days duration begins on the date of entry to Turkey. Holder has no right to work" Am I correct to assume that means a person has multiple entry for 180 days and then cannot go back to Turkey, until 90 days has passed ? I did ask at a travel agency but all they could tell me it was a normal visa for £10 maybe JT can enlighten me
Janine
