[onphonenow]

Without consideration there is usually no agreement.

Normally the SAFE is dated on or about the time of the wire transfer

Talk to a lawyer. My guess is you could let them know that a safe is issued in return for funding and given they did not fund promptly you've elected to go elsewhere.

Probably be good if the safe was updated (void after 5 business days if no funding received) to be explicit for everyone.