UK visit visa enquiries [closed]

Comments aside, there are a few of your concrete questions that seem to be answerable, so I'll try:

1. What really matters here is not what you stated as your intentions before you went, but what your visa said you were allowed to do.

   If you left the UK before the limit stated in your visa and/or the entry stamp in your passport, then you didn't do anything wrong, and changing your plans within the limits given to you by the authorities themselves shouldn't count against you.

   If, on the other hand, you overstayed the time limit, you have a problem. The UK government may not currently know you overstayed, since they didn't have exit checks in place in 2012 -- but the visa application will require you to provide details of your earlier visit, and if you lie there and are later found out, you will end up in considerably worse trouble than the overstay itself would have caused.

2. As you describe it, it doesn't sound like something that should be a showstopper. Your application should include information and documentation of your uncle's financial situation that will allow the consular officer to conclude it is reasonable for him to gift you (part of) a holiday trip.

   Be sure not to describe this uncle as a "sponsor"; that has a particular meaning in the visa context and could be confusing.

3. If you truthfully state that you're not going to meet them, you don't need to "justify" that they're not there to meet. The visa application will still ask about any relatives you have in the UK -- uncles and cousins do not count as relatives for this purpose, but you should explain anyway that they're there, who they are, and that it's not them you're going to see. Not mentioning them will make it look like you're hiding something, particularly since you had a family visit visa earlier. But it's not as if just because they're there you'll never be allowed to go to the UK except to visit them.

4. No idea.

5. No idea. It sounds like plenty for two weeks if you'll be living with your friend and it's exclusive of the flights to/from the UK. But what do I know?