You'd think I'd know my name and address

My name's a bit tricky for a lot of Spaniards. My mum calls me Christopher, most other people use Chris. Cristofer exists as a Spanish name, as does the more traditional Cristobal. There are a lot of Cristiáns and Cristinas who use Cris as the shortened version. Nonetheless, Chris, said with an English lilt, is usually too much for most Spaniards, at first pass and, often, I have to revert to pronouncing my name a bit like Kreees or Kreeestoffair for it to be understood. If I'm only booking a table or something it's not really a problem, any old name will do, but lots of people are surprisingly picky about how it's spelled. My middle name is John. This is a clear misspelling for most Spaniards because the H isn't in the right place. I'm not sure that there is a way to spell this, my middle name, using Spanish spelling rules. The usual best try is to spell it as Jhon. On any number of official documents I am Jhon. John also comes after my first name - Christophe...