Praise be to Allah.
In the answer to question no. 154229, we explained the ruling on the marketing practices followed in the My Way company, and that it is not permissible for a member to pay 20 pounds, or to work to collect twenty-five points in order to become a member of this company and get discounts, and that this comes under the heading of gambling.
In this answer we also explained the ruling on brokerage and acting in the interests of the seller or those of the buyer, and what results from that.
If your work with the company will be limited to buying products, then selling them to customers, there is nothing wrong with that.
But if the company offers membership as a gift in return for buying products of a certain value, and becoming a member will result in getting certain discounts, then this comes under the ruling on discount cards. We have explained previously that dealing with discount cards which are obtained in return for something is prohibited. See the answers to questions no. 121759 and 152076.
Therefore you should not buy the products in order to obtain membership; rather you should buy them with the aim of selling them, even if that is for a small profit. Then if you get membership and discounts after that, there is nothing wrong with it.
Similarly, there is nothing wrong with accepting the rewards and free gifts, or selling the products for the catalogue price after buying them from the company for a lower price.
You should pay attention to the guidelines mentioned in the answer to question no. 154229, which have to do with brokerage and taking commission when buying for friends and relatives.
We ask Allah to help you to pay off your debt, and to grant you provision by His bounty.
And Allah knows best.