That's so unsatisfactory, biblically speaking. Paul says "whoever calls on the name of the Lord shall be saved."
That's either true or it isn't. You either believe it or you don't.
Is it true, and do you believe it?
(I do believe it. In it's pure simple form, I believe it. Paul says they'll get started at that moment with the Lord. He'll ensure everything else will get done.)
Problem is MOST (not all ) RC’s call on the name of the church ...not Christ.. those that call on Christ eventually leave..
matthew 7:21 "Not everyone who says to Me, 'Lord, Lord,' will enter the kingdom of heaven, but he who does the will of My Father who is in heaven will enter.
It seems to me that you may want to look at context for your Acts 2 verse.