A pyramid-marketing company that sells da’wah tapes

In the answer to question no
40263 we have
already stated that it is haraam to participate in pyramid-selling schemes
like the “Business” company, even if these companies sell a real product
that has some value, because the aim is not to sell that product, rather the
aim is marketing, and pyramid marketing is based on ambiguity and consuming
people’s wealth unlawfully. 

Shaykh Saami ibn Ibraaheem al-Suwaylim said: 

The essential idea behind pyramid marketing is simple and may
be summed up as follows: A person buys the company’s products in return for
the opportunity to convince others to do what he did (i.e., to buy the
company’s products too), in return for which he takes commission. Then each
of these people who joined the scheme convinces yet others to join too, and
the first one gets additional commission, and so on. 

He also said concerning the “Tasweeq net” (marketing net)
company – which is a company that sells real products –  

This system mentioned in the question is a pyramid marketing
scheme, no matter what form it takes, in which the person who joins it
convinces others to buy so that they can also join the marketing scheme. So
long as the commission is greater than the value of the product, the primary
goal behind buying is the commission and the product is secondary. Based on
that, this is not allowed according to sharee’ah because it involves
ambiguity and consuming people’s wealth unlawfully, since the one who joins
the scheme does not know whether he will succeed in convincing others to
join or not. If he succeeds then he will profit at their expense from their
subscriptions, otherwise he will lose the money that he paid to join the
scheme, and those who joined through him will be subject to the same risks.
Each level in the pyramid will lose, unless there is a level beneath them
which can bear the brunt of the loss, and so on. 

For more information see the answer to question no.
43595 

And Allaah knows
best.