We don't currently allow product deletions (although this is coming). The reason we haven't allowed it is to prevent customers from accidentally wiping out all of their product keys. We'll be rolling out a "safe delete" later this year.
In the meantime just delete all the product keys in the product or version you want deleted, then email me at wyatt@wyday.com and tell me which product or version you need deleted and we'll remove it for you.
