omanrock is right...up to a point on #3. Yes, records are required to be entered within a certain time frame. But if you find one that was inadvertantly left out, enter it! whether it's six weeks or six months later, as long as it makes it on that year's LAR.
In the past, on loans that did not have the gmi for whatever reason, I've tried calling but I find sending a letter stating that "...in order to comply with Government Regulation C, (we) are required to obtain the following information concerning your recent loan application at our bank" to be more effective. I request the applicant complete the Section X info and return to me in the enclosed SASE. I document by keeping a copy of the letter in the file showing my good faith attempt to correct the ommission error.