For starters, none of the helpers here work for LW. We're volunteers who help out in our spare time... so you won't get a reply from LW's tech support here

When did you download Pro & did you download from Lime Wire » Download LimeWire

Do you have your CC statement for that time? Who appears as the vendor for your Pro payment? If you don't have your CC statement, did you get a receipt after buying Pro? If so, who is the receipt from?

After you buy Pro from the official site, you should recieve an email from LW with a link to your Pro personal download page. Do you have that email?
If you paid the official site for Pro, I don't know why you would get at least 3 emails about your purchase. Check your emails & tell us who those emails were sent by.

Where did you send your tech support email (which address)?

Which Pro did you buy (6 months worth of free updates & support for $21.95, 12 months of free updates & support for $34.95 or the one-off payment of $13.95 which has no free updates & no support)??