Hello! I have not been able to purchase tickets from sites previously recommended by other readers - I keep getting error messages. Is there a way to purchase all necessary bus tickets, i.e. at a travel agency, immediately upon arrival in Spain? I am traveling in a large group (7) and need to make sure that I can confirm the bus routes in order to ensure we stay on schedule. Thanks!
You are likely receiving error messages because you are trying to book too far ahead or your credit/debit card is not 'synchronised'. I would be very surprised if any travel agent was prepared, bothered about or in any way connected to the myriad of bus companies operating up and down Spain, many of which are not even 'web present' or would be unable to provide tickets remotely. Presuming you are on some sort of tourist trail and you have this trepidation, go to the bus station office the day you arrive in town or the day before departure to purchase.
Everyone else does.