Premium Rate Customer Service-Beware!

Interestingly their websites all show a premium rate number (especially if phoned from a mobile) for orders and a "lo call" number which is charged at the same rate as an 01 or 02 number when phoned from a land line as the customer service number. I would think that these fit them within the law. I wonder if the problem comes from calling the lo call rate number from a mobile as the mobile provider can add a connection charge which the company you are calling has no control over.