Timeshare Scams and Fraud

I was contacted over the phone to sell my timeshare. Said they had a buyer that wanted 100 timeshares to purchase and they were going to pay $18K for mine. Everything was going at warp speed once we got started. Then they wanted us to pay $2150.00 for a Naturalization Document and an TAX NUMBER for Mexico. Said it would be reimbursed through the escrow account with CitiMex that had been set up and forwarded to me. (I tried to call them too to check the funds and those numbers didnt work.)My husband wanted me to find out more about it. I looked up and found all these stories about people being ripped off from other companies saying the exact same thing. So I politely told them we could not afford to pay that amount or any amount because we were really strapped in our finances right now. They keep calling and emailing me telling me that I really need to pay this to get the money out of the ecrow account and that if I dont I still have to pay the commision of the guy Anthony Richards because I broke contract. Their "office address" is a building that had been vacant since 2015 and just last month broke ground to turn them into apartments but their website was made this year and the address is on there. Today the Senior Manager called me to discuss things!!!