Sorry for the inconvenient, to cross to another country there is a passport needed, commonly we ask to US citizens to at least have birth certificate and ID, because of COVID this last option that regularly just apply for US Citizens, will not work for the moment as common. It will be depending on the Mexican customs at the moment. We are sorry but we have this information everywhere. Because the booking was made at las minute and it was cancel at last minute too. Our policy is clear no refunds at all. Sorry for the inconvenience, but we did our best to return at least part of the payment because we have a record you try to contact us before hand, that was the only why we where able to give a refund of 40%. Sorry again that this did not work for you as expected.