I'mnot yet have masage email us aprove from adsense but i can log in to my account. is that a problem?
Your fine, but you should check your spam/ SMTP server settings on why you didn't get the welcoming mail as there might be a problem when Google will try to contact you.
recently i got an adsense but did not receive approval email and few days before i got banned without any reason, with in two days after approval, i did no invalid activity