It actually makes sense that prices are going up.

Sex trade in any form (SB, WL, ML, etc) are all restricted in the same way: A provider who needs more money cannot increase their income by increasing volume through reduced pricing.

If they are affected by inflation and need more money, the only thing they can do to get that is increase their price. Doing a weekly special like Coles or Woolies is not going to do anything for them.