Refund/Exchange

I bought electric blanket at Game Traderoute on the 11th of July 2023, by the 19th of July it was not working anymore, only got tike to go exchange today the 27th of July, the treatment I received is disappointing, manager told me the blanket looked old, the cashier told me about email they recieved telling them not to exchange for us, and I didn't understand how is tht email has anything to do with me because that communication is internal for them to know what is expected of them , since tht email was not read to me while buying the blanket why is suddenly important for me to know when returning, blanket was booked for repairs with turn around time of 21 days by the time it comes back we will be approaching spring and it won't be tht cold anymore, why would you wanna repair something tht got broken within 2 weeks of usage instead of exchanging or refunding me, and then take the product to your supplier but make sure as a customer I am happy ,am not treated badly and am not suffering because of your supplier's. Am so Mad!