Sales leads

There seems to be a bit of art to determining whether feedback from our website's feedback form is legit or not. Lately we've been getting a number of sales leads which appear very dubious. Note that they never mention our company by name or any of our specific products. This seems to be some sort of generic fishing expedition. And, since they mention Nigeria, they have the unfortunate link to the Nigerian email scams. There are two we've received today...

hello,
Am lussy hase by name,am the purchase officer at alex stores in alexandria.i have heard about your site and the comfort of your services from one of your customers who is my superior here.i would like to place an order to our branches in greece,norway ,nigeria.i tried getting them on amazon but they were too costly.mode of payment is by our american issued credit card.pls can you handle the shipping ? i will be looking towards to your respond.

Thanks
lussy

and...

Hello Sales,
Greetings from MIKE Trading Company.This is DON the Purchasing Manager this particular company,we are interested in your products and we will like you to response with this question below.
1) Do you ship Internationally to Lagos state,Nigeria?
2) Do you ship via this shipping comapny below(DHL EXPRESS,FEDEX
WORLDWIDE,UPS) ?
3) Do you have a website for us to email you the items we are interested in ordering.?
4) Our mode of payment will be Credit card .
5) Do you sale in Wholesale or Retail ?
We want you to email us the question here so that we can proceed.Your response will be highly appreciated.
Thanks
MIKE DON
Purchasing Manager