Had this sent into me by an avid reader of the Forum.
From the Captain -
"It's basic economics that two parties supplying a like service located close
to each other will tend towards charging similar prices."
From the Govt -
Cartels are formed when businesses agree not to compete with each other.
Cartels are unfair. They cheat customers, who end up paying more for lower
quality goods and services. That’s why they are illegal and it’s our job at the
CMA to stop them.
If you’ve witnessed or been involved in a cartel, tell us about it and help us
make markets fairer.
https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/284407/OFT1389.pdf