Hi Rozita
There is no way to get retirement benefits with 7 years of payments. You may be qualified to get benefits if you are 55, as a woman, with 10 years of payments.
So, you may pay for the last 3 years of your service, and get compensation equals to 10 days of a full-time worker's wage.
However, it's not recommended to pay for the last three years in order to get compensation of a third of the worker's wage, as it's too low. Just move on!
I do recommend you put that money in a fund or life insurance account in the country you are residing now.
با احترام
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