Dual Sim Phone problems with Android

[FrankB0681]

I have 2 sims on a Huawei P20 Pro. ( 1 x 48 and 1 Giffgaff from UK )  Whenever I send a txt, the phone defaults to the UK sim and charges me for every txt.  I cannot force the phone to use the 48 sim  for txts ??????  

Any suggestion gratefully received

[dalyer]

You'll have to check the documentation for your phone to see how to configure things to prioritise one SIM over the other for some or all services.
This is not a 48 network issue.

Hope this helps.

[dalyer]

Maybe this for example?

https://consumer.huawei.com/en/support/content/en-us00754164/

Hope this helps.