We guarantee delivery to your door within 24 hours, if the goods are in stock.
What does this sentence mean?

Question

We guarantee delivery to your door within 24 hours, if the goods are in stock. 
 What does this sentence mean?

Answer

All customers are guaranteed next-day delivery.

Answer

Any goods out of stock are delivered with your next order.

Answer

Goods are delivered next day, depending on availability.

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