Faulty Mutimeter

Purchased a Beyer Multimeter dt8300 from cash crusaders in Shelly Beach .First of all they claim that the item was checked before leaving their premises, this is blatantly false as the pack is sealed and they did not open it for inspection. This product did not work and basically fell apart when I opened the sealed package . The readings were incorrect and the negative prong fell apart. I returned the item on the 11 July 2025 and the Manager of the store informed me that they have to send the item back to their supplier and it would take a one week to have it fixed and returned to me. After 1 week I approached the Shelly Beach store and they told me that it will take up to 3 weeks, this is contrary to what the Manager told me . To date I have heard nothing from them. The service as extremely bad and the product they sell is absolute *******!!!!!!!