Why can't I change my email id at my profile on Sedo?

[jaikini]

hi,
i want to change my email id.
now i have my gmail id there and i want to change it to my another gmail id coz i am not using the previous one due to lot of spam mails i get daily
when i put another gmail id i get error message saying its not allowed free email service ids
but why cant i change my email id at my profile on sedo?
what should i do?
tried many times
plz help,
jaik

 

[Keynes]

Contact [email protected]