Your claim was against the insurance company.They should have dealt with the problem, and organized things. Did they!.
When the original Tiny went into administration, there was a big problem with warranty procedures. Some people could claim via insurance cover, other could claim via the Consumer Credit Act, and other people lost out completely. Time took over some minor responsibilities, but it still left people very confused.The new Tiny company have no legal responsibilty to/for the old Tiny company.