arghhh help please before I go mad!!

I have sent an ai file and an eps file to a company that uses coreldraw. Everytime he opens the files I send he says they are pixelated or flat and not vectors. I have made a sign for my cousins beauty salon which is 700mm tall by 3000mm long. so an eps was the best way to go. Now he has asked me to send it to him as a jpg in true size at 600dpi... am I wrong or is this ridiculous. What are your opinions on this, because this guy is actually making me question myself now. thanks fellow designers, all feedback is gratefully received

If the sign is a only vector send him pdf file. He can import pdf in corel and should be good. Or you can use photoshop and make file in scale 1:10 (70cmx30) 400dpi and send jpg/tiff for him.

Thanks operhal, yes sent him pdf. sent him a 1:10 scale too. He still says he can't scale it up. he still insists that my ai and eps files are not vectors. he wants true size in 600dpi. so I sent the files to a professional printer friend of mine and he said the files were fine, he could blow them up to the size of a football pitch!! and the pdf is totally workable... in a word, he said change printer, this guy with a too small computer and old version of coreldraw has no idea!! I feel better now. I have never used coreldraw so I just wondered if the guy was opening them up in it wrong, maybe there was an open or an import etc. thanks again, really appreciate your reply.

please take care when/if you send for corel. Save it with a little previous version of corel, because people other than designers, even printers sometmes, nevermind updating their software. In some case people expect vectors to open in image viewer and try to scale it. One of my customers tried to put a 640*480 png on a billboard and said it doesn't work, although I had sent an eps too.