What are the costs and requirements for a reentry permit after applying for a spouse visa in Thailand?

The user is applying for a spouse visa in Thailand, which is a single entry visa valid for a year. They are seeking information about the costs associated with obtaining a reentry permit to allow travel outside of Thailand and return without needing to reapply for a year. Comments clarify that a reentry permit is necessary to maintain their visa status during overseas trips, with costs outlined as 1000 baht for a single reentry permit and 3800 baht for multiple entries, plus a service fee at the airport.