Dear Guys,
I am on the course of gathering documents to apply for FSW. All the firms that i worked with already gave me the reference letters. But, I am kind of stuck as one of the company in Saudi Arabia which I worked with in 2008-2009 is not ready to provide me a reference letter in their letterhead claiming that its against the standard procedure

as I was also not a direct employee. I was under a contract. However its still true that I worked there for 19 months and more than 2 senior managers are ready to provide their personal reference for me.
Its just that I wont get a company letterhead. Is there any alternative way other than company letterhead that I could include my experience for the FSW application ?
Really would appreciate any helpful inputs friends. This is the only thing that is left for me to continue with my application :'(
Thanks
Ishak