I’m a SMC and cancer survivor undergoing IVF however I’m concerned about how many vials one can purchase? We see that these donors go fast, but as someone who’s had a miscarriage with donor 15802 and want to continue to use him, my question is what exactly happens to the retired donors with remaining vials (if there are any)? Does CCB limit how many vials one can purchase? I mean a donor can donate so many and a single couple can purchase more than half, making it much harder of an already difficult process!