What’s the success rate of holiday visa for Thai partner to Uk ?

My fiancé is pregnant I would like her view Uk and see if she be ok to adapt to lifestyle change in the future . She has two children already at school so these would stay with her sister and continue education- hence giving my partner also has reason to return to Thailand .

I’m not of any pension age so me to Thailand is out of question this moment in time .

Maybe in future we as a 4 may attempt Uk and children tutor taught English .

I am Swiss and I will marry a Thai in Thailand. Question: Can the Thai lady keep her surname? Thank you.

I have an unusual question... My girlfriend is Thai, and received a Schengen tourist visa for 44 days from the Spanish Embassy in Thailand based on our travel plans at that time. We are in Prague now, and would like to extend our trip by one week (7 days) if possible. Is that something that can be done through the Spanish embassy in Prague? By the Czech immigration office? I see that it is possible to extend this type of of visa in other countries, but the information online is very vague.

I have some Czech friends attempting to contact the Spanish Embassy and Czech immigration office tomorrow, but was wondering if anyone here had experience with this in the past.