Here's the situation. My friend applied for a UK tourism visa stating that she would be visiting the UK for 2 weeks (It's written in the visa that she could stay up to 180 days) and granted but she ended up staying for 5 months (150 days). And the visa was valid for 6 months
During the 5 months she traveled a lot in the UK, Wales and Scotland. She stayed with friends so she didn't have to pay for the accommodation. So, she thought it would be ok which the immigration didn't say anything when she went back. She's Thai national.
Now she wanted to come back so she applied for the visa again and got rejected, UK Border gave the reason that they didn't believe she would be coming for tourism again because she stayed for 5 months already. And she applied again because she wanted to come here for vacation during Christmas and got rejected again with the same reason. Now, she wanted to apply again for the third time and she's not sure of what more documentation she needs to provide for UK Border to believe that she will come here for vacation and nothing else. For that last two rejections she also showed return tickets.
Not sure if anyone has seen this kind of case before and how to resolve it?