Selling Seo services guranty ranking without any advance payment

We are offering seo services for hard compatative keywords for your websites
Packages are following,

Package1
Keywords : 5
Required time: 4 months
Price : $400/month

Package2
Keywords : 10
Required time : 5 month
Price : $500/month

Special package:

Keywords : 2 (in any position & hard compatetive)
Required time : 2 months
Price : $200/month

Normal package(only for keyphreses)
Keyphreses : 5
Required time : 3 months
Price :$200/month

NOTE-
10% payment for security and start the project(only for 100+ itrederer without any nagative)
25% payment for security and stat the project(for no and low itrederer)
50% payment after 50% ranking
Left payment after complted the project.

If you have any queries pm me.

 

Ok well your title interested me, then I read this

So which is it?

 

I'm interested in this. However I can't see that you have any previous buyers of this service. Therefore I ask if you could consider me as a review type costumer: I WILL pay you when my site reach a goal we can agree on. I'm interested in your Special package, but again I ask if you could let me review your service without any advance payment. Let me know, thanks.

 

here is a very good payment terms in thread, you have to follow those.