Well, I've been transferring money from HSBC UK to Bank of Ayuthaya for years. In the past, the "mid spread" rate at www.xe.com 

worked out okay. 7 months ago, even more THB were credited than anticipated.

 

But the last 10 days, the shortfall has been thousands of THB per transfer or adiscrepancy of about 2%. that's steep.

 

Is some other Thai bank less greedy?

 

Have you observed a similar deterioration in fair forex pricing?

well the BP did drop last week according to rates posted ...  so maybe it's possible although 2% is alot.

They provide less exchange than Bangkok Bank for check today but are you sure there are not other factors involved?  Like you HSBC bank charge or cost of there transfer?  Or are they sending baht?

 

The exchange rate today was 43.55871 for UK pound at Krungsri plus there would be a normal charge of 1/4% in range 200-500 baht I suspect.