Dear Sir,
Thank you very much for the generous pay rise that I have just received!
While news of this increase was a pleasant surprise, what means more to me is that you saw fit to acknowledge the hard work that I offer to ------ so far. I love working at ------------, and having my efforts recognized with a pay rise cements my opinion that this company is a fantastic Managing Director.
I promise to fulfill my responsibilities effectively. Thank you so much for trusting on my capabilities.
Again, thank you for the pay rise and for your support of my work here at this company.
Kind Regards,