Is this theft? Money not being refunded for show tickets when show is cancelled.

We purchased 5 tickets for the Steve Hofmeyer IKOON concert on 29 March 2025 that got cancelled/postponed at the DHL Stadium Cape Town. The new date in October does not suit us and as such we have requested a refund from TopTickets. However TopTickets claim iTickets need to refund us, as the funds are in escrow with iTickets. At this time, between TopTickets and iTickets I am R1,812.50 out of pocket - supposedly ****** from me! How is it that money can be taken for a service to be delivered and when that service is not delivered, the money simply can be held, in other words, ******!