My renewal letter says, in part, "[i]f you fail to fully execute a new lease by September 22, 2024, your lease will go to Month to
Month at the rate of $0.00."
All of this depends on the jurisdiction, but most western countries have some kind of defense for corporations making mistakes
Usually it's something like "if the offer is clearly a mistake, you don't have to honor the sale", but rental agreements are a bit of a grey area, since they are a contract between two individuals instead of a sale