Complaint Review: Carnival Cruise Lines

So I've been cruising on Carnival (CCL) for 15 years. 23+ cruises.  Booked a cruise for Jan '23 in April. Went on 3 cruises this year. So I go on their site to look for another cruise, in addition to the Jan cruise and find the Jan cruise missing. Call my CCL travel advisor who tells me you missed your final payment so they cancelled your cruise. Now I had monies going into CCL, all year long, for the 3 cruises, so I didn't pay a whole lot of attention. I call CCL. They tell me they sent me a notice. Now, I've received 40 or 50 e-mails from CCL over the last couple of months. NOT ONE has mentioned a final payment due. On top of that, destiny tries to tell me they sent it to some bogus e-mail address. One I've never heard of before. She says they can rebook my cruise at DOUBLE the price. I know they're hurting for money, I just didn't know it was that bad. I guess my wife and I will just have to find a new cruise line.