A strong chance that Thai customs will apply an inflated and arbitrary value on each item, then add a minimum of +30% then another Vat tax of 7% compounded, so good luck with that!!!
strangely I went to the bank yesterday, packed full it was, had to sit and wait for 2 hrs, I went in shorts and T shirt, as were 90% of the customers, spoke to a very nice employee, as you would to anybody providing a service, reciprocated respect all round, I didn’t have to supplicate myself or show unnecessary deference, any suggestion otherwise demonstrates a very insecure demeanour!!
don’t forget the shirt and tie, and polish your shoes!! Ffs, the previous comments, dress professionally?? Ok shorts and flip flops like every body else in the bank! Ask with humility?? Utter crap!! Be respectful, ok but prostrate yourself for a bloody service!!! Get real… have some bloody self respect !!