There are two kinds of "Budweiser" sold in Europe. Do you want the Budvar-Budweiser from the Czech Repulic, or the Anheuser-Busch Budweiser from the USA?
If you want the latter, take a train to a well-stocked beer shop in NL, or go to the UK (GB). It's quite easy to get in the UK. You can sometimes find it Germany, where it's called Anheuser-Busch "B." You can also sometimes find it in France.
If you want the former, you can find it in the UK, NL, Germany, Austria, France, the Czech Republic ... just about everywhere. Maybe even at a well-stocked shop in Belgium.
No need to have it sent to you. If sent to you from the USA, it would cost more to ship it than it costs in the supermarket.
For free, try SeaWorld Orlando. At the Anheuser-Busch hospitality pavilion, you can have all the Bud you want for free. Not only that, but they have all the A-B products, including the thin-on-the-palate but dark-in-the-plastic-cup Amber Bock, which can be worth going back for, depending upon your priorities--but not only that, they also offer the unusually hoppy Anheuser World Lager. The AWL hops are kind of stark and stiff--no gentle floral aroma--but at least the beer incorporates some aspect of actual intentional flavor. And you can keep going back, for free!
Last time I investigated Sea World (San Antonio) fees for the family the word "free" didn't enter into the picture. "Discount" tickets were something like $200 for the 4 of us IIRC. TNSTAAFL. HTH.
For the price of time and transportation you can try various A-B products "free" at an A-B factory. I've done the St. Louis plant tour twice. It's interesting.
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