After you file

I never received the 45 day letter but I received a 60 day letter and then I received a letter after the 60 days stating there holding my refund and till may 2nd for review and I will either get my refund deposited by may 2nd or another statement and the mail I was filed and accepted on February 1st I didn't receive my 60 day letter and till March 15th then March 19th I received the last letter