A woman, going by the name Ashley W, shared her story on Netmums , revealing how she had spent £4,000 on flights for her family to attend her cousin's wedding down under.
But when they arrived, her family told her she would have to find a babysitter for her five-month-old daughter as children weren't invited.
The mum says she had known about the nuptials for a year and during that time no one had mentioned that her baby wouldn't be welcome at the ceremony.
It wasn't until the official invitation turned up three weeks before the big day, that she discovered there was going to be a problem.
By this point it was too late, as she'd already booked flights for her family.
She said: "My cousin invited us to his wedding in Australia with 12 months notice.
"Sent us an email with the date no further info. My daughter is five months old. So my family said we would attend and we bought the flights."
She added: "I chased for the actual invitation about 100 times and eventually it arrived three weeks before we flew. The invite said no children. I flagged that they really should have mentioned this before I bought the flight."
When they arrived in Australia, her family weren't impressed that she had brought the child along and suggested she find a babysitter.
She continued: "Am I being unreasonable to think it's a joke they can't make an exception for a breastfeed baby flying from England?
"Don't have kids at your wedding, no problem. Don't make me spend £4k on flights and accommodation to be told that my baby can't come," she said as she poured out her anger.