Premium rate phone numbers, like those starting with 0870, 0871 etc have long been a controversial topic for a long time.
What we find is that many companies, such as banks, often use them for customer service calls and other IT technial support lines. Also more common, comanies use them as their main complains number meaning we have to pay to complain about a company.
These calls don’t come cheap either and the costs can soon rack up. Be a Savvy Caller and find the standrad geographic 01, 02 or 03 alternative number and call these number without having to worry about the bill.