Buying reviews ? And your experience

Ok so I did search before posting but can't seem to see anyone's actual experience after buying reviews.

I'm looking to buy local reviews that will stick for Google and trustpilot. (That will stick)

How much would you expect to be and can anyone recommend someone on here they have actually used.

go bhw marketplace. search for threads selling reviews. identify the people who placed orders. ask them about their experience with the vendor.
for every 3 messages you send, expect 1 reply. so send many messages.

Cheers for the advice.