How can I prove my current location for a DTV visa application while in the UK, and will flying into Phuket instead of Bangkok be a problem?

The user is applying for a DTV visa from the UK and needs clarification on how to provide proof of their current location during the online application process. Commenters suggest using official documents like utility bills or driving licenses. The user is also inquiring about the implications of flying into Phuket instead of Bangkok, and responses indicate that it is acceptable to arrive in any Thai city.