SELAM TUNC BEY BEN ERDEM YANI GARDASIN UMARIM TANIDIN

My attempt:   "Greetings mr. Tunc I am ERDAM that is to say you are a ´guard´ (like in sports) I hope that we have met before"

 maybe this will be better

"Hello Mr Tunc.I am Erdem I mean your bro...I hope you recognized me."

In this sentence confusing word will be "gardas"...it is an informal expression...means "kardeþ"...we can call in English instead of "gardas" bro...

 Hello  Mr. Tunc Im Erdem so you are at the railwaystation I hope you have met (him or he) . GARDASIN it is GAR=railwaystation, -DA= at, SIN= you are.

Interesting variations on a translation!  I would go with the second one

thank u so much

 As a native speaker It doesn´t make sense "so you are at the railway station" I think your bro will better

 Ok you are right because you are a native speaker isnt it ? I think only canimarab can know because he has the context were used this sentence

I think you will find canimarab is female, with her boyfriend Erdem.

Hopefully she can settle the discussion about which translation was correct in her sentence!

Whatever is she or he , will know about what was talking about