Do I need to inform Immigration?

[DAVYCHEZ]

I'm in the uk at the moment and am thinking of staying on for a couple of weeks longer than planned. Do I need to inform immigration about my change of return date?

[Ginjaninja]

Are you just entering with a 30-day tourist visa?
If so; there is no need to inform anyone but once the 30 days are up (in-country) you will have to apply for either a weeks extension at immigration or do a visa-run. You can only do the weeks extension once in concession so makes sense to do the visa-run.
Rgds,
GN.

[DAVYCHEZ]

I've already got a re-entry stamp from immigration, I put on the paperwork that I was returning on 1st January but intend to stay in the uk for a further two weeks.
I live in Hua Hin but I'm not sure about changing flight details and informing immigration.

[dtaai-maai]

As long as you leave before your permission to enter/stay expires, you're fine.

EDIT: I've just read your post properly.
There was another thread recently where someone was complaining about misplaced humour or sarcasm.
Sometimes it's very hard to resist...

[lomuamart]

There's no need to inform Imm of your return date. That's up to you.
However, if you don't return within the validity of the re-entry permit, you'll simply get a 30 day visa exempt stamp on arrival (unless you get another visa). The permit will be dated to expire on the same date as your permitted to stay stamp.

[DAVYCHEZ]

Thanks for the replies, I have an ED visa at the moment, does that make a difference?

[lomuamart]

Don't think so. Bapak will know more about that.

[DAVYCHEZ]

Thanks, I've just emailed the school.

[bapak]

Don't think so. Bapak will know more about that.

Must return before the current Extension of Stay expires otherwise "Ed Visa" is voided.