I'm not surprised the Judge will not postpone the hearing if kidnapping has been alleged.
The Law on Kidnapping: Where We Stand Now
http://www.criminallawandjustice.co.uk/features/Simplifying-Law-Kidnapping
The House of Lords defined the offence in terms of five necessary elements:
The defendant carrying/taking away the victim
This is the principal conduct element of the offence; some movement is a necessary element of the offence of kidnapping However, the victim can travel a comparatively short distance (as little as 100 yards) for this criterion to be fulfilled as long as he is accompanied by his assailant .
The defendant’s use of force or fraud:
In the opinion of the Law Commission the force element of the offence is satisfied “if there is coercion of the victim by physical means or by the threat [to the victim]” (consultation paper, p.22). By contrast, under the current law there is no precise definition of fraud in the context of kidnapping; the issue of when non-disclosure of pertinent information to the victim crosses the fraudulent threshold has not been resolved (ibid).
The lack of the victim’s consent:
This element is additional to the use of fear or fraud. If the defendant is to use consent as a defence, that consent must last throughout the conduct alleged to amount to the offence The victim must consent to the taking or carrying away that is actually carried out by the defendant. Consent may by vitiated by force, fraud or lack of capacity Consent can never be given by one party on behalf of another.
The defendant’s lack of lawful excuse: A lawful excuse would include exercise of reasonable parental discipline, action in accordance with an order under the Mental Capacity Act 2005, as amended by the Mental Health Act 2007, and arrest by a police officer.
The defendant’s attack on the victim’s liberty:
This provides both the rationale behind the criminalization of the conduct defined above, and also a necessary element of the offence. In order for this element to be present “the deprivation of liberty must occur simultaneously with the conduct nature of the offence” The secreting/detention of the victim is not a necessary condition of the offence of kidnapping it is, however, likely to be of evidential significance in the case against the defendant.
OK. Four out of these five key elements you need to rebut as best you can & note that both Social Services & the Police are aware of your actions (Did you tell them voluntarily) & have not taken any action to remove your mother..I presume.
For example,it might help if you could send the Judge a letter signed by your mother & independently witnessed that says she is happy to stay with you & has come of her own accord & that she is not deprived of her liberty.
Your excuse for your actions you have probably mentioned already. ie your concerns.
Hope this helps.