Review Safeway Flat Iron

Good Day

I purchased a Safeway Flat iron not even a year ago and its starting to give problems. The Flat iron is switching off all the time and I'm unable to use it. I am very disappointed that I have the box of the product but now I'm unable to change it due to the fact that I don't have a proof of purchase. I have never had problems until now and that the guarantee period is almost over again. Please help as I love the product.