Richard Joes question is the key one If for example you posted the application on say the 15th December you might have grounds to appeal but my guess is,sad as it is, that you didnt make yourself aware of the rule change re the A1 English test and there may be no way round that.

In which case your wife will have to return to the Phils and take the test and reapply for a spouse visa, Information is the key its a pity you wernt here back in July as you might have been better prepared hope it all goes well for you and you use the resources here to achieve your goal