I think, that many busses come from Bangkok to Pattaya.from Suwarnabhum airport is coming busses evevry 1 hour or 30 minutes directly to Jomtien, where i am living.
Ekkamai bus stations have bussies every 20 or 30 minutes to Pattaya. from Morchit, too and Vans from many places.
All are okay for me. I will pick up you every where from here.
My number is 08 48790745
Tapio.