Here, the record clearly shows that Covault failed to comply with the service requirements of the NRMA. Personal service is an area of the law where the letter of the law must be complied with strictly. See Williamson v. Basenback , 298 Ga.App. 567, 568, 680 S.E.2d 577 (2009) (“We strictly construe statutes addressing personal service, and absent proper service, the [trial] court obtains no personal jurisdiction over the defendant.”) (citations omitted).