Buy installs for apps (google play and app store)

I want to promote my apps (google play and app store) by keywords.
If somebody can sell installs let write me by my contacts

First of all I'm looking for motivated installs (user get reward for install and rewiew)
If you can get it please write:
Number of installs for each country what can you do daily and in the beginning?
What is he price of these installs?
What is maximum installs can you do daily for Play Google and App Store app for each of country?
Can You guarantee retention without deleting the app for 3 days?
The user also needs to get review, in your case is it possible?

The budget is large enough, at a good price ready to buy the whole volume of installations

if you do installs using advertsting please also write to me