because QR customer service is, errrr, not the best *. The agent is quite likely to go for the safe option and push the enquirer through an unnecessary, but expensive, name change.

In practice check-in agents are used to dealing with the concatenation and transposition of names and titles.

Names containing prepositions/particles such as van, de, e routinely get mangled. Honorific titles allowed by some systems might be treated quite oddly by others.

It's best to stick to simple first and last names. Margarita de Castro e Sousa is better off travelling as plain Margarita Sousa.




* I'm being charitable