CompuServe Messages

There is a file in one of the libraries (#2 or What's New) inviting submissions for a CD-ROM sampler, administered by Advanced Digital Systems. They said to upload submissions to their cserve address — one week ago I uploaded 2 megs of animations to them there, costing me $50 (I won't do *that* again!), but there has been no receipt acknowledgements, including receipt acknowledgements of later messages asking for confirmation of receipt. Is this normal for email? Or does anyone have information that maybe the contest is already closed to submissions or the company is defunct or something. I hope someone here can clear up this uncertainty. thanks.