One who signs an agreement without reading it carefully may not later contend not to have understood what he signed

A customer who signed up for the enrichment course unilaterally stopped his participation and refused to pay the balance of the tuition due to alleged misleading regarding the nature of the course.

The Court accepted the claim and obligated the customer to pay its due as he did not even bother to read the agreement carefully. The general rule is that one who signs a document is bound by it, even if did not read it "carefully". Whoever chose to sign without properly reviewing the content of the document signed acts on its own responsibility and cannot later contend that it did not understand, or did not know the content of the commitment. The service provider clearly detailed the content of the offered course and the conditions for canceling participation in the course, but the customer signed the contract without reading it carefully and stopped paying without meeting the required conditions only because he thought it was a different type of course than he anticipated. Therefore, the customer was not misled and has no right to renege on his obligations just because he was wrong about the profitability of a transaction. Thus, the customer must pay the balance of the amount he committed to pay under the contract.