Vendor Contract Problem — scope creep with no amendment

I'm in a difficult situation and trying to figure out my next steps.

scope creep with no amendment. I've been dealing with this for about 13 months now and the situation isn't improving.

The contract was signed 6 months ago. I have a copy of the original agreement. The total amount in dispute is approximately $42,000.

Has anyone been through something similar? What worked for you?

Not a lawyer, but I have direct experience with this.

What worked for me was hiring an attorney to send the initial letter. It took 2-4 months but was worth it.

Attorney here. Here's my take on the legal issues.

Based on what you've described, you likely have a viable claim under the implied covenant of good faith. The standard is whether a reasonable person would find the conduct commercially reasonable.

You should consult with a local attorney who handles these cases. Many offer free initial consultations.

I've dealt with this before.

What worked for me was filing with the appropriate government agency. It took 4-8 months but was worth it.