It's actually the HUAIYIN Institute of Technology in HUAI'AN, Jiangsu.

Anyway. If you're teaching college (not to mention writing TESTIMONIAL LETTERS!) with THAT English, then I'm not sure that "super star" is the right word. (At least, it's usually one word...) Your English does sound an awful lot like Frank Zhang's English- so I guess he's truly a very influential man. Or something.)

The end is the worst part: "when i say this, my tears already came to my eyes. You can contact me or contact the University direclty to ask everything. Both I and the University like Frank Zhang very much."

The whole first quoted sentence is pretty strangely melodramatic over a guy who pimps 4000-RMB/month-for-18-classes/week jobs in the middle of bumf*** nowhere to teachers, none of whom in turn are native speakers, but I guess we can't really dink you for that.

"when i say this": First words of sentences, and the word "I" in reference to oneself, are just about always capitalized. Also, "say" here would pretty clearly have to be in the Past Simple tense: "said."

"my tears already came to my eyes.": Well, even ignoring the highly unusual expression for the onset of tears, or the fact that you actually "wrote" it rather than "saying" it, this is just wrong grammar again. I think it's called a past participle form? The whole sentence should read, "When I said this, my tears had already come to my eyes."
"When I wrote those words of thanks, my tears were already rolling down my cheeks" is one of several possible sentences that might be even better.

"direclty": Spelling, spelling, spelling! But switched letters like those could arguably be a good honest typo, so we'll let that one slide.
I avoided using the word "transposed" to try and help "Julia" understand clearly.)

"contact the University direclty to ask everything.": It might actually be better to use "anything" instead of "everything". Something like "anything you want" might be even better.

"I and the University": Don't say "I and the University," dear. Say "the University and _I_."

"Both I and the University like Frank Zhang": Mr. Frank Zhang should always be addressed as "Mr. Frank Zhang." Just plain "Frank Zhang" isn't good enough. And don't even think about handles like "Gomer", "Wheezy", "Spaz", "Peckerwood", or "Dick Cheney." And, never, never, NEVER slip and call him "Loretta." He just doesn't like it.

Honestly, Frank. Can't you and your hired goons come up with even ONE LOUSY POST that contains something anywhere even close to correct English?