Wireless carriers can’t keep up after weekend price-cutting promotion

TORONTO — Canada’s major wireless carriers are apologizing for long customer service wait times as consumers scramble to cash in on limited-time promotional offers. While the holiday season is always competitive for the telecom companies, a low-rate plan offered by Shaw’s Freedom Mobile and a recent update of Canada’s code of conduct for wireless carriers are among the drivers spurring a flurry of special promotions [&hell