Hello, my mother-in-law came yesterday on a visitor visa. At Toronto Pearson Airport CBSA officer did not stamp on her passport, I fould out today after looking at her passport. My question is "Is this usual?" How long she can stay? Do I need to contact CBSA, if so what number to call? as they may have mistakenly forgot to stamp and write duration of stay. As you know she was on a wheelchair and have multiple entry visa for three years. Please advise. Thanks.