Hello,

I'm Russian, 27 years old. I used to stay in China (Guangzhou) for my work. From 3 to 15 of Feb. I will go to Thailand for traveling. Now i have L visa for 6 months, but it will be finish 18 of Feb. And i want to make F multi-entry Visa with 12-Month Validity in China Embassy in Thailand. I have several questions:
1. May i apply for visa without invitation letter?
2. Does the F multi-entry Visa with 12-Month Validity have 30 (or 90) days duration of each stay?
3. May i apply for visa in Saturday or Sunday? Or its Embassy weekend time?

Thank you