Can any information be filled in after you’ve signed a contract?

I signed a contract for a credit card terminal. The salesman later filled in my name on 6 of the pages. I’m now unclear as to what information was on the contract before I signed. Does this make the contract invalid? I’m also being charged for services we discussed but do not have a contract for. Is this legal?

Asked on September 13, 2012 under Business Law, South Carolina


SJZ, Member, New York Bar / FreeAdvice Contributing Attorney

Answered 8 years ago | Contributor

Only the terms which the parties agreed to are enforceable; this means in practice that only the terms which were on the contract at the time of signing are enforceable, unless  the parties agree to add or change terms later. However, information that does not change any of the terms or obligations--like simply filling in a party's name in other blanks on the contract to which he's already agreed--will not affect the validity or enforceability of the contract.

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