I just want to make calls !!!

[PhilipM_2366673]

When I'm out and about in West Yorkshire - the mobile phone signal keeps dropping in and out all the time.I can't make calls or send texts (Emergency calls only) I'm seriously thinking about going back to Tesco (O2) mobile - at least it worked !! My phone is a Samsung Galaxy S21 Ultra. Any fixes anyone ???

[Chalkychap]

Sounds like the O2 network gives you better coverage in the areas you're using your handset, @PhilipM_2366673. 

At least you're not tied to any SMARTY plan for more than 1-month.