Social Egg Freezing (< 35 years old)

Hi,

I am interested in doing social egg freezing (i.e. freezing my eggs for future use as i don't have a partner and am in my early 30's). I am curious if anyone has experience with;

1. Dr Singer in Kusnacht?

2. Sending eggs to another country (i.e. sending to the US or denmark or UK for use after freezing them here due to personal - like moving from CH or sperm donation