Warning: saaS provider changed terms unilaterally

I publish illustrative scenarios prepared by my practice. All participants and conversations are fictional. The fictional posts are not posts by real users, accounts of client experiences, or reports of actual results.
Illustrative scenario prepared by my practice.
For informational purposes only. This is not legal advice. Laws vary by jurisdiction. Consult a qualified attorney for advice specific to your situation.
Hypothetical question

Has anyone dealt with something like this? I'm not sure what my options are.

SaaS provider changed terms unilaterally. I've been dealing with this for about 3 months now and the situation isn't improving.

The contract was signed 16 months ago. I am not sure I have the original signed copy. The total amount in dispute is approximately $138,000.

Do I have a strong case? What should my next steps be?

Illustrative response

Just want to point out — the statute of limitations might be a factor here. In some states it's as short as 1-2 years. Don't sit on this too long.

Illustrative response

Important to note: statutes of limitations vary by state. In California it's generally 4 years for written contracts and 2 years for oral contracts. Don't wait too long to take action or you might be time-barred.