You might find it extremely difficult to get the bail conditions changed. A court may ONLY impose a tagging condition under circumstances where, except for the availability of tagging, there would be no other choice than to remand the person into custody. (Section 3AB, Bail Act 1976).
So the court has ALREADY made a decision that you should be held in prison if you're not to wear a tag.
Unless you can convince the court that something has CHANGED it would seem to be unlikely (and, indeed, probably beyond the powers of the court) for the order to be varied.