7 Eleven

Convenient like the rest of 7-11 shops but this store actually sold me a paper travel ticket (weekly) that was already used last year. It looked brand new but the train station attendants told me the date and location of when the ticket was first used. Went back to 7-11 and it took forever for them to swap it out because they wanted a receipt and didn't want to review in store security camera footage to prove I bought it there. 30 minutes of complaining and eventually they swapped it out.