If you mean 2019, the program is no longer supported by Intuit. You will have to get a refund from Amazon. (The only 2019 I can find on Amazon is sold by a third party, not Intuit or Amazon direct. It's important to pay attention to who you are actually buying from on Amazon.)
If you mean 2020 or more recent, call customer support. However again, if you bought a cheap program from a third party (not authorized reseller), they may have sold you a pirated copy with an invalid code. You have to pay attention to who you are really buying from.
