I want my refund ….. I want my money

I bought a financial calculator on 30 May 2025 and returned it on 2 June 2025 because my old one started working again. I had not opened the package, it was still sealed. I have been waiting for my money since 02 June 2025 up to date. HP Menlyn, give me my money back. I gave you the calculator, what more do you want?