Add
noreply@mailrugames.com to Your contact list, make sure mails don't go to spam, and put it on whitelist, if you tell me what domain you use (gmail, hotmail?) ill explain you how, Usually adding to contact list pretty much fix it though, so try it first (u might need to send another confirm code or register a new account but adding
noreply@mailrugames.com to ur contacts Before the register).