YOU are correct Gerefan ! in that it DOES appear to be a mistake ! ( not on my part though....I THINK ( although anythings possible I guess, but I'm guessing more perhaps with their online portal)
I have already queried the cost by email and am awaiting the reply etc, it but on reading your message above I thought "shit, I'd better actually just think back and check what I DID ask for" - and whilst as the initial booking is just made via their online booking form unfortunately there's no record at my end for me to check, however I KNOW I booked "airport to Pattaya" etc as I had to even had to complete the whole hotel name box and KNOW I'd stopped and typed in Mosaik hotel / Apartments etc. BUT on ACTUALLY re reading their pricing confirmation just now I noticed that they had in fact actually quoted it as a fare from U-Tapao to SWAMPY airport ! So, THAT would totally explain the price they quoted !
I've just dropped them another email highlighting this and am sure they'll now rectify that and re-quote accordingly - and before anyone says "ahh there you go, you're mistake Mister etc" whilst it is always possible it's one of those situations where I just KNOW I didn't select Swampy as my destination as of course why would I and also it's not even the next box to Pattaya on their drop down box selector, in fact the two locations aren't even beside each other and again I ( definitely) completed the hotel name info etc too - Im SURE.
I'm guessing that somewhere from me completing the form to it sending it has perhaps refreshed and defaulted that destination box perhaps maybe just, of the lady at the other end just read it wrong or whatever? Anyway, that should explain the pricing blip and needless to say once I hear back from then I'll update to show all suitably rectified etc so their already good reputation remains untarnished.