Megabus ads offering fares from £1 have been banned after the firm admitted as little as one seat per coach was available for the price.

A website and Facebook post for Megabus, seen in September, for a new Aberystwyth to Birmingham service featured a yellow circle with the text "From £1", while another ad listed services from Leeds to new destinations in Yorkshire for the same price.

The page said Megabus was "offering a heap of new services from around the UK to many towns in Yorkshire", adding: "As always our fares are from £1*."

The Facebook post included text stating "Day trips from £1* London to Bath."

Two complainants, who searched for tickets and believed that fares were not available at the stated price, challenged whether the claim was misleading.

Megabus said that at the time of the website claim relating to the Aberystwyth to Birmingham route, there was one fare for that route for October 10 priced at £1 available online, while at the time of the Facebook ad there was one fare for the London to Bath route for September 22 available for £1.

Megabus said the number of fares available at £1 for any given route varied due to many factors, such as the number of intermediary stops and the number of tickets booked for the partial and full routes.