Wanted to buy a wedding dress.  California number.  I live in Michigan.  Wanted to pay by cashier's check.  Once I told them I thought it sounded fishy, they stopped communicating.

+1 (626) 636-3571

He wants to buy soccer tickets I have posted on Craigslist and pay by cashiers check. He's even adding money for me to hold them. I'm sure it's a scam.

I posted a table and chairs for sale on craigslist, this number said they would send a cashiers check to purchase. I told them it was $600, they sent a check for $2,500. Its a scam. Also, they have terrible manners. They used foul language at me in texts when I did not respond to them. BIG scam.

Sending fake checks through the mail is a crime so contact the US Postal Service Inspectors:
https://postalinspectors.uspis.gov/forms/MailFraudComplaint.aspx 
https://www.usps.com/