How to force displaying the coutry code in messages

[Android Central Question]

Hello, I use a Dual-SIM phone (Huawei P10) with a +33 simcard and a +44 simcard.
All of my contacts are saved with a country code, but when I receive a message from a +33 number, for example +3360123, my phone displays 060123 instead of the name of the contact.
I guess I defaulted the +33 country code, but how can I undo this?

Thank you!