Does anyone know how to get to Kunming International Clinic from Xiao Xi Men???

an American friend holds a double entry 1 year visa, how cool is that!

Nah, I have white and Asian friends who are on a ONE year visa, 3 months visa etc.... And these visas were obtained either in SE Asia or in their home country. So, it is not impossible that your GF was given a 3 months visa.
As far as i know, it is not fixed that a person is only granted a 30 day Chinese visa when applied in SE Asia.

The type of visa will depend on what the applicant had applied for as well as the kind of visa the CHINESE EMBASSY is WILLING to grant to the applicant regardless of what the applicant had applied for.
Eg; A friend who is on a one year visa had to leave China quarterly ( another friend half yearly- it all depends on the VISA type) and re-enter the country. This is part of the requirement for the one year visa given. If they do not leave the country, they will be fined and have their visa revoked. THere are some who do not have to leave the country at all during the validity of the VISA.
So you need to find out, whether for the 3 months VISA that was given to her,does it require her to leave the country monthly but she can re-enter again??? every 2 months??? If she is required to do so but did not, then she had violated her visa. HOWEVER, if she is allowed to stay for the whole 3 months without having to leave the country during this period, then she is fine. Probably she had to do some visa run ( leaving the country then coming in again) every month and she is not aware of that.
Best to make sure what is really on the plate!!!
All the best!

by the sound of it, i am pretty sure they gave her a 3 months visa. If it is stated on the visa that it is a 3 months visa, i think you needn't pay any fine at all. She is here legally for 3 months, as stated on the visa.
Just stand on that and they shudn't give you any problem.

Nah, you cannot negotiate the fine if you are at fault.
True, nothing they say is solid. I believe that if she has been given a 3 months ( if it is stated on the visa), then you can't be punished for that even if they weren't allowed to give a 3 months visa.
AS i have mention before and I will mention again, there are different kind of visa available, different period of validity. I am 100% sure that there are 1 month visa, 3 months visa, 6 months visa and a 1 year visa.
If your gf has indeed received a 3 months visa, then you should know that it is possible for her to receive such visa.