Bad service approach during lockdown

I have tried to call the number *** on the till slip) Hyper Centurion, but no answer. It has been now more than a month since I return a Salton 30lt Mini Kitchen to them, which the big hot plate broke after two weeks of usage. Needless to say at the inhumane way of treating the situation (during lockdown- I could not return the broken stove within two weeks to get an exchange (of which they did not inform me when I bought it - just said it had a one year guarentee) and I had to come home with out an exchange becuase the date I return it was longer than two weeks. Wll, now it is the 1 Seeptember 2020 and I handed it in on the 26 July 2020 qfter I brought it on 22 June 2020!. How long must I still wait? Very bad for a Salton product to brake within two weeks! 9I have no power surges at home or maltreated it. Please, I think is time to set aside you exused and give me proper service!