我收到移民局通知，要求提供以前employment verification.
I have contacted my prior employer and they faxed me a copy of employment letter. There are two discrepancies on the employment letter with what I put down on my I-140:
1. date of employment: it is off by a month and couple days;
2. job title: on my I-140 I put "Staff" but on the verification letter it says "assistant"
Do you think these differences matters? What shall I do now?
万分感谢！