Oops, typos, formatting.
Wow. OK, I'll feed the troll.
Firstly this person is probably your customer, or your customer's customer. So they pay your salary.
Next, are you sure they live in your country? On holiday? Visiting?
Next, do they speak only in their foreign language all day, every day? Are you sure? Do you suggest everyone becomes fluent in a language before they visit the country?
For some languages,with dedicated effort, even getting close to high-school level language will take several years on average. And guess what? The best way to learn a foreign language is to live in a foreign country.
Are you so sure you'd be happy to communicate at the level of a one year old to your family, friends, co-workers if you were in their position?
Source: I'm an English Teacher and part-time Japanese student in Japan. Please feel free to give specific examples of who does you such great injustices and I'll be happy to debunk them.