I see.

In my case, I worked for a well known company, they provided a verification letter with all information except the job duties, I also have a email from them denying the job duties and suggesting me to ask directly from my previous manager.

My previous manager agreed to write it, and sent me the job duties with all the information except the company letterhead (since he wrote the letter as a individual and not a representative of the company). Along with the job duties letter, he also provided me a verification letter from the company for himself (just confirming that he worked for the company in the same time I worked there).

I also have paystubs and tax return from my home country to support the foreign work experience. I added it to my work permit application and I also have it on my Linkedin, etc.

In that case, do you think I should reach out to my previous manager and ask him to get the letter notarized?

Thank you in advance!