TTfone Red TT760 4G Flip 4G Mobile with USB C Cable

I have tried three different New Sim cards in this phone, ( 1p mobile, nsnda, and Labara) none of them work, all I get on the screen is either, No service, Emergency calls only or Registering, an absolute waste of money and useless phone, it's now sitting in my drawer and I'm sure soon destined for the rubbish bin. I was a little hasty in my review purely out of frustration, I am pleased to say the problem with the sim cards has now been resolved thanks to a gentleman at Tesco Mobile and the phone is working as it should and is proving to be very good value for money , I would now say it is a perfect phone for any elderly person who only need minimal use. Also TTfone service team were very kind and helpful.