You can try ThaiSexyEscorts
Most of the ladies also have AW pages.
£90 for 30 mins and another £20 for CIM usually.
Some of them will do CIM and Swallow for £30
So £110 or £120 all in.
A little above your price point.
Though most do an hour for £120 or £130
So an hour makes more sense than 30 mins.