Lincolnshire-based homeworker Cathy Howard claims her customers were made to sign a document by a rep at the Sensimar Seaside Suites & Spa hotel in Mexico to switch accommodation after the room they had chosen five months earlier was double-booked upon their arrival.

According to Howard – who works for Your Holiday Booking – the document prevented the guests from discussing their holiday on social media.

Howard told TTG the group believed they “wouldn’t be allowed to move rooms if they didn’t agree to sign”.

She said the customers described the form as an “official document” bearing Thomson’s logo and were not given a copy to keep for themselves.

“I’ve never heard of anything like this happening before,” Howard said.

“At no time was I advised by Thomson that there had been a problem, I felt absolutely awful and shocked at how they had been treated when they came home and told me.”

A Thomson spokesperson said the company was “sorry” to hear of the customers’ experience in-resort, adding: “As it isn’t within our usual policy to produce such disclaimers, we’d like to thank the customers for bringing this to our attention so that we can investigate the situation.”