You can change the imei number for that sim carrier

Call 994 yehone gize register asdergu slkachhun teblo every kefo wst sim asgebten register asdergen alneber maybe it could be related with that

Getch ate neh😂😂?

Check Your IMEI Number [ call *06# ] if it is null well you have to root ur phone and change it

Andand sim endeza yhonalu chgru ke slku aymeslegnm lela sim asgebteh mokrbet

Umm...try to make 1 ov the sim network mode 3g only and the other 2g only or 4g/2g...