When I used to work at Bmi Basic was 19,000 and that was 4yrs ago.
Why not ask the company to benchmark you against other airlines?
Even with a 20 % pay rise on my basic ( and thats what some pilots got for changes to t & C )
Get rid of your box payments, CAT payments and meal allowances and incorporate them into your basic and you might get a pay rise too. Of course BASSA won't even consider an hourly rate, no matter what that rate is.