Got sued by debt collector in 2024, living in California. Have a question

r/

Hello, sorry if I didn’t flair it correctly but this is my first post.

Location: California.

So I had a debt that I didn’t get to end up paying off due to me losing my job and my family health issues.

I got served papers being sued by a law firm of a law group on April 2024. I immediately called them and set up a payment plan with them in which we both agreed upon.

Everything was going fine. I was paying back the debt via through Money Orders due to me not having a physical bank, and I couldn’t do a transfer through my online bank. So I’ve been making payments since mid 2024 until now. In April 2025, I sent out the money order as per usual with the same address that’s listed on their website. That envelope with the money order got sent back in June with a yellow notice “RETURN TO SENDER — UNABLE TO FORWARD,” so I thought I would just re-mail it to them back asap and everything would be fine. I continued to do what I had to.

Today, I just got a court summons from them saying that they havent received any payments from me since April and that I’ve breached my contract. That’s one thing that’s been bothering me because I’ve tried calling them and they wouldn’t pick up and I’ve tried emailing them with no response.

I’m a very methodological person. Everything I’ve done, I’ve saved. Such as receipts and the money orders receipts, recordings of videos of me putting the envelope in the mailbox and all the confirmation of payments they’ve sent me.

I was gathering all my receipts and money order receipts from 2024 to now. I’ve noticed that they never sent me receipts of payment for JAN, FEB, APR.

I was reading my court papers and it listed “13. California law requires insurance of a receipt or monthly statement for each payment that defendant makes under this Agreement within 30 days of receipt…”

Does this mean that they failed to carry on their side of the agreement and breached their contract? How should I proceed if I can with this?