Sounds like yet another bug in the online tool
There have been reports that on tickets originating in the Middle East that starting in one country (eg Egypt) and ending in another (eg Oman) resulted in the tool doubling the base price
It looks like this is happening for your itinerary also
- have just verified this using the tool:
- having two London stopovers, the tool shows a base price of 91,610DKK
- changing either stopover to a transit and the base drops to the correct price of 45,805DKK
___________________
You are definitely allowed the two London stopovers
and I think your memory is faulty with regard to the "special difference" between AONE and DONE for London stopovers - I have copies of the xONEx fare rules going back to 2008 and there was never anything in the rules concerning this.