twitter default message

Dear Developers,

I changed my companies name from litvanyaliturk to avrupalıtürkcom, and so twitter name as well, but when I share via twitter from your button, I still get “@litvanyaliturk” as you can see below. How can I remove “@litvanyaliturk” from default twitter share message?

“Avrupalı Türk – Avrupa’nın Türkiye’ye Açılan Kapısı http://avrupaliturk.com/ @litvanyaliturk aracılığıyla”

Thanks
Mert Konrat