Applying in UK the 60 day Evisa will come back quick takes about
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days to process once you’ve applied. You can do it upload easily on your phone & Quite straight forward. The LTR OA takes longer I found more complex and people said to me why didn’t I just apply for the O vIsa I wouldn’t have had to have certain documents. I would give yourself at least a month if applying for one as it can go back and forwards by email if not right and you need 4 days inbetween waiting for acceptance of the additional items requested: feel free to PM me, if I can help you I will. I would say if you’re having problems with timescale like we did, apply for a separate 60 day application & extend 30 days when you get to thailand. I feel your pain !