I bought a return BHX-BKK and the T&Cs state:

2 STOPOVERS PERMITTED IN EACH DIRECTION
LIMITED TO 2 FREE AND 2 AT GBP 100.00 EACH
1 FREE PERMITTED IN EACH DIRECTION
1 PERMITTED IN EACH DIRECTION AT GBP 100.00
EACH.

The flights are often sold BHX-SIN or BHX-HKG and all these flights stop in Bangkok so that 2 stopovers are possible in Dubai then Bangkok in one direction.

I had a stopover on the way out to Bangkok in Dubai for a few nights. My understanding of the fare rules is that I am entitled to a stopover on the way home (1 permitted free in each direction) but Emirates won't let me change my ticket to add a stopover without paying both the £100 ticket change fee and another £100 for the second stopover (although its actually just one stopover in the other direction). In addition they want £20 airport tax.

Their rules state one thing but they are adamant I am interpreting it wrong. They have me over a barrel as to change my flight I only have the option to pay or leave my flights as they are.

I don't know whether to pay and then take it up with trading standards or head office.
Can anyone advise?

Thanks,
Alison