Tania S

scam? or not?

we have applied for green card /visa to immigrate to USA, Started the process last year 2021, October and so far all we have done has paid almost R300,000 to this company, we now have questioned them why we still don't have our USA embassy appointment date and USA green card USCIS: tracking number.. We are just told we still need to pay another $5000 dollars to now to submit after 11months already.. anyone else hade experience with this company?