Consumer Minister Jo Swinson said the Financial Conduct Authority was committed to considering whether it could introduce measures to limit costs for those calling banks, insurance companies and investment brokers, along with retailers.
She said: "For too long, some businesses have been trying to extract every extra penny from their loyal customers.
"From next year, if something goes wrong with a cooker, or commuters want a refund on their season ticket, they will now pay the same to phone a helpline as they do to call friends or family.
"We want consumers to be confident to shop with a range of traders. The new rights announced today will mean consumers are entitled to the same level of protection whether they are purchasing goods or services online, at home or in a shop."
More top news
The hashtag #RoomForManchester was being widely shared.
Witnesses reported hearing a "huge bang" at the venue during the concert on Monday evening.
ITV News travels to Britain's eastern-most city to gauge how the electorate will be casting its votes.