Many commercial establishments use your phones search for wi-fi to track your phone's visits to the store, movement through the store, and whether the phone is near a cash register when a purchase is made.

Sometimes stores respond differently to customers, if they are "near" a phone that shops often at that store.

If there is a database which maps wi-fi identifiers to phone numbers somewhere (and who thinks there isn't), that might explain the contact.

Could also be coincidence, or perhaps you used a credit card while visiting that hotel. Which is a simpler explanation.