Smart 10 Mobile

Hello and may the mercy and blessings of Allah be upon you I have a Smart 10 mobile phone. The reason for selling is that I bought it for my maid, but when they tried it in her country, the device didn't work there. The phone was taken out of the box, we turned it on, set up an account, and then contacted the person in her country who said this device doesn't work here. So he said okay, return it and I want a Samsung instead. I have the invoice and everything, and it has a two-year warranty