NASHVILLE (AP) — A deal to bring 900 jobs to Nashville has fallen through amid concerns the company closed several offices in Canada and laid off workers.Mayor Karl Dean said the city is not moving forward on arrangements with IQT Inc., a provider of customer relationship management services. Gov. Bill Haslam, Dean and others announced the deal June 9.Last Friday, IQT announced it was closing three call centers in Canada, according to WTVF-TV in Nashville.Dean said he was surprised about the developments in Canada and dismayed about the way the employees were treated.