I found a really cheap deal to majorca for me and my two girls in the first week of april and in my excitement forget that my youngest daughters British passport has just expired. I really cant afford to renew it as will be on a very tight budget for the hotel until we leave. She does have a valid USA passport as she has dual citizenship through her USA military father who is currently in America. Will it be a problem with customs in majorca and england on our return if me and my eldest daughter travel with our British passports and my youngest on her USA passport? I have her British birth certificate, my marriage certificate to her dad and her expired british passport will it be ok if I show those documents? I still have my maiden name on my passport and she has her dads last name. I desperately dont want to let my kids down and have to cancel the holiday. Any advice would be greatly appreciated thanks.