dwshimoda
You seem to be getting an hourly flight pay instead of meal allowances. Why should you have a language payment on a typical charter route where most of the passengers are British and assumingly speak English? No hotel to stay in either as you are operating a there and back, which seems to be the norm with some airlines. BA also operate a fair share of there and back flights.
Could you explain what you mean by disruption allowance, something I have never heard of, and what you mean by "less duty pay than you get tax free".
Maybe if the cabin crew at your company were represented by a strong union similar as BASSA they could have enjoyed similiar terms and conditions. ST is also an issue which our union have negotiated for us and would be the responsibility of your union to take care.
MrBunker
Your question has been answered several times.