Mmmm ...
Perhaps you don't have the experience on the aircraft they operate ...
ADA, Aerogulf, Falcon Air Services & Gulf Helicopters primarily operate Bell 412 (or 212 in the case of Aerogulf) or the Aw139 (ADA, A'gulf & Gulf Heli.) they might in the present climate be loathe to type rate you only to run the risk of having you walk away if you don't 'fit' ...
Its tough ... but there you are ...
Also ADA & Falcon are reassessing crew requirements in the light of contract changes so perhaps more patience is the key ??
Good luck waiting ...