I might have overdone that bit That’s a very good question and I would think NOT. A bank would not be able to provide this information to anyone who calls. To be honest I don’t know how they would confirm this other than to ask you for more documentation.
It’s possible they could do this if they think you are only showing the exact amounts and they feel that after so many years of work experience you should have more in savings since express entry is for high skills jobs. This is really at the officers discretion. For example they say that you will have to prove access to these funds when you arrive to claim landed PR at the airport. We were not asked to do this.