HomerJ

...OK so this will probably be my first and last flights on TAP because well I realized that just because it was a really good fare doesn't mean jump in without looking at the details.
Anyways here's my question...I want to buy a baggage allowance online I click on the buy link beside baggage and I keep getting an error message.
Is this normal....I've never had such confusion flying with an LCC before.
Help?