As a general rule, "a person who signs a written instrument is presumed to know its contents and cannot claim that he did not read or understand the document. Blount v. Smith Barney Shearson, 695 So. 2d 1001 (La.App. 4th Cir. 1997); Brown v. Simoneaux, 593 So.2d 939 (La.App. 4th Cir. 1992); Tweedel v. Brasseaux, 433 So.2d 133 (La. 1983). The Court agrees with the defendant that the Arbitration Agreement is valid and enforceable.