Kiwi property rental website Bookabach has come under fire for moving to a global, commission-based platform.

Bookabach was bought by US-based Home Away in 2013, and has since been transitioning bach owners to the new platform.

The move has been met with frustrated owners and renters taking to Facebook - saying the new website is confusing.

The transition means some owners are moving from an old system - where they'd pay an annual fee - to a new one, which charges both parties commission, forcing prices to go up.

After 11 years renting her Waipu Cove hideaway on Bookabach, Marie Akland says the change has forced her to jump ship.

"They've sold out to a company that is not New Zealand based that aren't going to cater to us bach owners."

She says along with booking fees increasing via the company's new commission-based model, the new owner, Home Away, has shocking customer service.

"When you ring them, if you can get hold of them, they are rude, totally rude. They make you feel everything you're saying is wrong."

Akland suspects hundreds will follow in finding other ways to rent their baches.

However, Bookabach co-founder and director Peter Miles says it's necessary in order to compete in the current market.

"For me, as co-founder of the business, it feels great Bookabach has a future going this path. I don't think we would have such a rosy future if we weren't."

Miles admits they've been slow at replying to customer complaints and says they'll do more to reach out and explain the changes.

He says the older model wasn't sustainable, but admits it is a change for current customers.

"For a lot of them, it is paying more, because for $300 they were getting $10,000, $15,000, maybe $25,000 worth of business."

Miles says they made the decision to move to a global platform to compete with other major booking sites - and the older model wasn't sustainable.