Simple Mobile Phones?

Both my wife and I use low cost Tesco Mobile "pay as you go" mobile phones, without contracts, for phone and texts. We find these do all we need. My wife's phone is now many years old and she needs a new one.  Any recommendations?

We rarely need data and rely on wi-fi connections for these most times.

Aldi - NOT amateur radio

For a long time, fellow blogger Steve G1KQH and my relatives have been urging me to shop at Aldi's. Sadly, our nearest Aldi's is in Ely, which is a fair bit further by car than our nearest Waitrose or Tesco. I have noticed that prices for a weekly shop seem to have gone up by around 20% at Waitrose when groceries and food generally have had negative inflation. As we were going to Ely anyway this afternoon, we called in at Aldi's to do a basic shop. For branded items you do indeed pay far less than at Waitrose. Either Aldi has very low margins or Waitrose is creaming off the profits. Either way, we'll go to Aldi's again when in Ely.  I like Waitrose as a shop, but do not like being ripped off.