There is a breakdown on the review if you read it 
OP has provided helpful intel in noting additional charges:
- OWO £20
- Anal with OWO £50 (which he paid for)
- and CIM £30
It's entirely possible that I've missed the glaringly obvious here - wouldn't be the first time. But what I'd like to know is:
- What was her London base rate (given that he's stated that it's now lower in the north-east
- OP had an outcall. Her current outcall rate in Manchester is £180.
So, let's say that her Outcall rate remains the same throughout the country. That would suggest that he paid £180, plus £50 for anal w. OwO.
That's £30 more than the £200 he paid.
I'm not questioning the veracity of the review, simply curious how the figure came to £200 given my points above.