Hmm, I tried asking both chat support and phone support about resetting my download list but they weren't familiar with that. Is there anything specific I should be asking for? Did the download list reset result in the loss of any content, or just the restoration of content that was missing?
I'm having the same issue, where some items are missing from my download list, but if I search for the items in the store I can download them without having to pay for them. Something happened in the last few updates where the download list became all jacked up. This issue is present on the webstore as well as the store on ps3, vita, and accounts on ps3.